Category Archives: zoology

The Glory of the Cat

The Glory of the Cat – The Adored Pet!!!

Two Short Pieces of Poetry, From the Pen of an Earnest Biologist (Aditya Sardana aka Adidarwinian), Dedicated To the Glory of the Cat for the Pet Lovers around the Globe:

 For some the cat is Hilarious,

For others the cat is Furious,

For me the cat is Prestigious and Glorious.”  

 “For the Ages,

The Cats form the Divine Images,

In the Minds of the Sages.”

Domestic Cat - adidarwinian

A photograph of a Domestic Cat – adidarwinian

The Glorious Cat – Its History, Fame, and the Never Ending Legends

“A lame cat is better than a swift horse when rats infest a palace” – an ancient Chinese saying

The cat is too glorious as an animal not only in its unique biology that blesses it with the amazing physical abilities unrivaled by other animals but also in its long and interesting history. The bones of a cat have been found near the human bones in a ninety five hundred years old grave, which was unearthed in Cyprus, dating from 7,500 to 7,000 years B.C., making it the oldest known evidence of the domestication or taming of the cats. This is much earlier in time than the domestication of these wonderful animals by the Egyptians.

Reference to this celebrated mammal has been made in the ancient Sanskrit writings of the mythological and mystical land of India, which are more than two thousand years old, and still more early references are found in the inscriptions, monumental figures, and the cat mummies of the ancient Egypt. These preserved relics shed a bright light on the answer to one of the most difficult questions in the field of zoology that how this least tameable of the animals was domesticated and adored as a pet.

Felis catus or the domestic cat (also called as the house cat) can be found on every continent of the planet Earth, except the continent of Antarctica, usually in the human populated areas. These animals, due to their ubiquity and familiarity with us, are often treated as our companions.

The cats have always acquired a prominent place in the human culture. There are many legends about them and their mystical powers that are dispersed within the extensive literature created by the human beings for ages. Evidences show that even more than thirty five hundred years ago, the cat flourished as a beloved and revered animal along the banks of the great river Nile. Egyptians used to call cats as Mau-Mai, Maau, Mau, or Maon. The ancient Egyptian kingdom of the Pharaohs paid homage to them and regarded them as the sacred animals. Cat was decorated with jewels and worshiped in the temples. In the Egyptian civilization, this animal was so much adored that the figures of cats were placed in the Egyptian homes, and even their death was respected by burying them in the tombs. To show veneration, trinkets or ornaments representing both the goddess and cat were worn.

Egyptians protected their cats from getting injured, took great care of these beloved mammals when they were alive, and mourned their death with expressions and signs of grief. To express grief, they even shaved off their eyebrows. The Egyptian’s idea of a respectful and correct burial of a human being involved the practice of Mummification (process of the mummification was used by the ancient Egyptians in order to preserve body parts of the dead from degradation until the day of resurrection), and this same process was used for their beloved cats. If a dead cat’s owner was wealthy, his or her cat was very elaborately mummified by using the finest linen and enclosing the body in a bronze box with a statue of cat placed on the top. The richest paid special reverence to their dead cats and buried their dearest dead cats with the pomp and magnificence of a royal personage.

Since the ages, cats have been a part of many mystical legends. They have been associated with the occult, evil, witchcraft, and magic, especially, the so-called black magic, but now these false perceptions have lost their value, at least, for the rational minds. Not only the pet lovers and biologists adore these great animals, but even the Hollywood has made a lot of wealth by selling cat-centered movies; how can one forget the cat named Tom in the famous “Tom and Jerry” cartoon films.

Click this image to enlarge –

Wild Cat - adidarwinian

Lynx - adidarwinian

A photograph of a Lynx – adidarwinian

The Glorious Cat – Its Place in the Menu of Life

The cat is a mammal which belongs to the order Carnivora, that is, the flesh-eaters. The zoologists divide the order Carnivora into the two suborders, viz., – the Caniformia (the dog-like or caniform carnivores) and the Feliformia (the cat-like or feliform carnivores).

Before knowing where exactly the taxonomists have put our glorious and beloved cats in the long list under the menu of carnivorous animals, we should at least give a keen glance at the classification of the dog-like carnivorous animals or the Caniformia. The order Caniformia (the dog like or caniform carnivores) consists of the following families –

  • Canidae – The family Canidae contains the dogs, wolves, coyotes, foxes, and the jackals.
  • Ailuridae – Red Panda (Ailurus fulgens)
  • Mephitidae – The family Mephitidae contains Skunks and the Stink Badgers.
  • Mustelidae Mustelidae is the largest family within the order Carnivora, and is comprised of weasels, polecats, mink, stoats, marten, wolverines, fishers, badgers, otters, and others.
  • Odobenidae – Walruses (Odobenus rosmarus)
  • Otariidae – The family Otariidae contains Sea lions and the fur seals.
  • Phocidae – Seals (they are also called the hair seals or true seals or earless seals)

Note: Seals, fur seals, sea lions, and walruses are collectively referred to as the Pinnipeds (wing-footed).

  • Procyonidae – This family comprises of Cacomistle, Coatis, raccoons, and relatives.
  • Ursidae – It is the family of theBears (Polar Bear, Black Bear, Brown Bear, Spectacled Bear, Sloth Bear, Giant Panda, and the Sun Bear).

Now, let us move to the suborder that contains our much cherished cats and other cat-like mammals. The order Feliformia (the cat-like or feliform carnivores) consists of the following families –

  • Eupleridae – This family consists of the Malagasy carnivores which are restricted to the island of Madagascar.
  • Herpestidae – This family consists of the Mongooses including the Meerkats.
  • Hyaenidae – Striped hyena, Aardwolf (Proteles cristata), brown hyena, and spotted hyena (Crocuta crocuta)
  • Nandiniidae – African palm civet (Nandinia binotata)
  • Viverridae – It consists of the civets, genets, linsangs, binturong, and relatives.
  • Felidae This family consists of the cats; a member of this family is called a feline or felid. The family Felidae consists of two subfamilies – Pantherinae and Felinae.
  • Pantherinae – This subfamily consists of the roaring cats (leopards, lions, tigers, and jaguars).
  • FelinaeThis subfamily consists of the small cats:
  • Cheetah (Acinonyx)
  • Caracal
  • Small cats – Chinese desert cat, domestic cat, jungle cat, Pallas’ cat, sand cat, wild cat, black-footed cat
  • Catapuma – Asiatic golden cat and Bay cat
  • Small American cats – Colocolo, pantanal cat, Geoffroy’s cat, kodkod, ocelot, pampas cat, Andean mountain cat, little spotted cat, margay
  • Serval
  • Lynxes – Lynx, bobcat
  • Marbled cat
  • Asian small cats – Leopard cat, fishing cat, rusty-spotted cat, flat-headed cat, Iriomote cat
  • African golden cat
  • Puma – Cougar or Mountain lion, Florida panther, and Jaguarundi

Click these images to enlarge –

Fishing Cat - adidarwinian

Margay - adidarwinian

A photograph of a Margay – adidarwinian

Jaguarundi - adidarwinian

A photograph of a Jaguarundi – adidarwinian

The Glorious Cat – An Evolutionary Marvel

Extraordinarily Flexible, Swift, and Athletic!!

“Cats’ stunning acrobatic feats have been the envy of even the finest of our gymnasts” – Aditya Sardanaaka Adidarwinian

Cats show extraordinary mobility and flexibility due to the fluidity of its body’s design. They show stunning acrobatic feats unparalleled by other animals, such as:

  • A cat can twist itself into unusual positions.
  • It can very easily curl itself into a perfect circle during sleep, twitching its tail in a rhythmic fashion across its nose.
  • It can jump up about six times its length or more than eight feet in a single bounce.
  • It can jump from great heights without being hurt.
  • From a sitting start, it can bounce up to nine times its height.
  • It can make sudden changes in direction when pursuing and capturing its prey.
  • It can narrow its shoulders and chest to squeeze easily through very tight spaces.
  • In a wink of eye, it can reorient itself in midair and land on its feet.

Powerful muscles in the hind legs of a cat and the flexible nature of the joints in its limbs and vertebrae, helps it to jump up about six times its length or more than eight feet in a single bounce. This amazing animal uses its tail as a highly specialized tool for communication, and also, for balancing its body while climbing, jumping, etc. Its tail allows it to maintain its orientation during sharp turns made while running, for example, when hunting a prey. The structure of its body gives it a marvelous flexibility. Its supple spine makes it very fast, flexible, allows it to perform elegant gymnastic feats, and also makes it a high-speed runner. Between its spinal vertebrae, are present the elastic, cushioning and thick fibrocartilaginous discs. These discs are very pliable (bendable) and resilient (rebounding). In order to reach top speed, a cat lengthens its stride, and thereby increases its speed, by extending and flexing its spine in succession. When starting a new stride, using claws as spikes for traction, it stretches its body to its maximum length, with every stride driving it about three times its body-length.

A cat’s shoulder blades or scapulae are attached to the sides of its body by muscles only and not by any bone, therefore, allowing movement in almost every direction. This feature allows the shoulder blade or scapula much enhanced freedom to move with the cat, thereby increasing its running stride. Moreover, unlike the motion-restricting, long and anchored clavicles or collarbones of human beings, a cat possesses small, rudimentary, muscle-attached “floating collarbones or clavicles”. This provides narrow chest to these animals which accounts for the amazingly long stride of these animals and contributes to their ability to squeeze through tight spaces or openings.

Click these images to enlarge –

Pallas' Cat - adidarwinian

A photograph of a Pallas’ Cat – adidarwinian

Ocelot - adidarwinian

A photograph of an Ocelot – adidarwinian

caracal - adidarwinian

A photograph of a caracal – adidarwinian

The Righting Reflex: Falls from Great Heights without Landing Dead!!   

Cats possess an innate ability called as “the righting reflex”. They possess an uncanny righting reflex, in which they orient or adjust their bodies to prepare for the impact of falling from a height. This impeccable ability imparts these animals the excellent survival instincts. The giant counterparts of domestic cats hunt on and above the ground. Domestic cat, following its giant counterparts, shows a remarkable sense of balance, nimbleness, and ability in order to spring up and land from high levels.

When a cat falls from a high elevation, it instantly rotates its head in the right direction. If, for example, a cat is upside-down (that is its spinal or dorsal or back is facing down) during a fall, it turns its head in the order that its face sees downwards (towards the floor) and the back of the head upwards. This systematic righting reflex of cat occurs due to its natural or evolutionary orienting nervous mechanisms in its eyes and inner ears. This adjustment of the head brings the forequarters (the part of the body of a four-legged animal that consists of its forelegs, shoulders, and the adjoining parts) also in the downward direction. Next, its spine twists in response to the above reorientation, and then the hindquarters or the rear portion gets are similarly aligned. Moreover, its tail helps in balancing and propelling its body during the act of reorientation. Cat also bends its back before touching the ground. This helps in dissipating the force of landing. The impact of landing is reduced by the soft cushions of the foot-pads.

Domestic cat is quite lighter in body weight. This animal at reaching the terminal velocity (the maximum uniform velocity reached by a body falling through a medium such as air, when the force of resistance of the medium is equal and opposite to the force of gravity) during a free fall is significantly less heavy than a human being. Moreover, if it falls from a greater height it would have more time to complete adjustment or reorientation due to its innate righting reflex before landing on ground, than if it falls from a lower height. After it has adjusted itself and if is able to reach the free falling at terminal velocity, cat spreads its legs, adding to the drag that helps in slowing it down. During the free fall, this mammal is able to relax it muscles, and this relaxation of muscles reduces the impact of the injuries that otherwise would have happened with tensed muscles.

Cats jumping down, towards the ground, from the high-rise buildings is a not an infrequent phenomenon. Open windows at the higher stories of buildings pose danger to them, as they fall out of them so frequently that the veterinary doctors have named this condition as the High-Rise Syndrome. Such falls can result in broken limbs and pelvises, head injuries, punctured lungs, shattered jaws, and even death. These mammals do not deliberately jump off from high places but most cats fall accidentally. These accidents occur as our beloved cats get highly focused on the objects of their interests. A moving car, a bird, or any other animal can distract them so much that they can lose their balance and fall.

It is a misconception that cats would not be injured if they fall only from one or two stories of buildings. They may actually get more injury when falling from shorter heights than by falling from greater heights. Lower heights do not give these carnivorous mammals enough time to reorient or adjust their body in order to fall correctly. So, the cats have a higher chance of suffering less severe injuries if they fall off from a great height. This is so as they would be able to reorient their body by virtue of their uncanny righting reflex. Also, there are more chances of achieving the terminal velocity when falling from a greater height against the lower heights.

Caution!!

It should be remembered that cats do not have nine lives as has been portrayed by the cat legends. When a cat falls from a high-rise building, it is quite probable that it may end up severely injured or dead. It should never be assumed that it has not survived the fall; rather it should be immediately rushed to the nearest veterinary hospital. Statistics have revealed that there is ninety percent survival rate for the one of the best pets of man – cats – when they fell from high-rise buildings and receive instant medical attention.

Click these images to enlarge –

Serval - adidarwinian

Bobcat - adidarwinian

Geoffroy's Cat - addarwinian

 

Cougar -adidarwinian

 

Kodkod - adidarwinian

 

Jaguar - Panthernae - adidarwinian

 

Sand Cat - adidarwinianSnow Leopard - Panthernae - adidarwinianCheetah - Acinonyx - adidarwinianLeopard Cat - adidarwinianLeopard - Panthernae - adidarwinianAsiatic Golden Cat - adidarwinianJungle Cat - adidarwinian

The Basis of Traditional Chinese Medicine (TCM)

The Basis of Traditional Chinese Medicine (TCM)

Traditional Chinese Medicine (TCM) stands up on the platform laid down by Taoism. Taoism, also known as Daoism, incorporates both a religion and a philosophy. Its deep roots extend back into the ancient Shamanism which existed in China since the Ice Age. Shamanism denotes a religion which involves weird practices, such as, influencing the world of good and evil spirits, entering a trance state by performing a ritual, divination, and healing. The cardinal principles that laconically explain the essential tenets of Taoism revolve around one’s conforming to moral and ethical principles, achieving union or harmony with nature, self-development, and the attainment of spiritual immortality. Tao literally means path, way, right way (of life), reason. Tao is a universal principle that forms the foundation of everything from the creation of galaxies to the behavior and interaction of human beings. The coverage of Tao is very wide, spanning even beyond the human logic. Tao can be comprehended only when both the reasoning and intuition are applied.

Qi, Yin and Yang, and Disease

Yin and Yang form one of the most fundamental concepts in the realm of Traditional Chinese Medicine. Yin and Yang are opposite forces and yet cannot exist without each other. Yin is regarded as the feminine, passive, or negative and Yang is regarded as the masculine, active, or positive principle. In our bodies, the life force or the vital energy, known as Qi, circulates and regulates our physical, mental, emotional, and spiritual health. The two opposite forces, Yin and Yang, influence the vital energy or the life force, that is, Qi. The vital energy, Qi, circulates in our bodies through a system of pathways or channels known as the meridians. Balanced and harmonious flow of Qi keeps us in health whereas an imbalance or blockage in the flow of Qi results in disease or illness.

The Theory of Five Elements in The Traditional Chinese Medicine

In the Traditional Chinese Medicine, another theory, the theory of five elements, also known as the five-phase theory, is acknowledged. The theory of five elements holds that the five natural elements: fire, earth, metal, water, and wood govern everything in the universe, including our health. This theory emphasizes the entwinement between the human beings and the nature.

The Theory of Five Elements in TCM - AdidarwinianAccording to the Traditional Chinese Medicine’s five element theory, each of the five elements is associated with particular organs, seasons, senses, tastes, sounds, tissues, directions, colors, stages/changes, etc. The wood element is associated with the liver and gall bladder (organs), spring (season), eyes (senses), sour (taste), shouting (sound), tendons/sinews (tissues), east (direction), green (color), germinate/birth (stages/changes), etc. The fire element is associated with the heart and small intestines (organs), summer (season), etc. The metal element is associated with the lungs and large intestine (organs), autumn (season), etc. The earth element corresponds to the stomach and spleen whereas the water element is associated with kidneys and bladder (organs), winter (season), etc.

The Eight Guiding Principles in The Traditional Chinese Medicine

In order to analyze symptoms and differentiate conditions, the Traditional Chinese Medicine, uses eight principles. The eight guiding principles form a very important aspect of Chinese Medicine, as it helps deciphering the nature and the location of the imbalance in the body. The eight guiding principles comprises of four opposites: yin/yang, excess/deficiency, cold/heat, and interior/exterior.

Yin/Yang – A disease can be categorized in terms of the dominance of either yin or yang. In accordance with the theory of the Traditional Chinese Medicine, human beings have both the yin and yang qualities, and it is the perfect balance of these two qualities that is vital for maintaining good health. Yin is said to represent the solid organs, and is associated with cold and female energy. Yang is said to represent the hollow organs, and is associated with hot and male energy. Yin represents a chronic illness whereas yang represents an acute illness.

Excess/Deficiency – This principle helps determining the strength of a disease or illness. An excess condition signifies the excess of blood, energy (Qi), etc. In Traditional Chinese Medicine, an acute condition is regarded as an excess condition. A deficient condition denotes a lack of energy (Qi), heat, blood (anemia), or fluids. A chronic illness is categorized under this condition.

Cold/Heat – This principle of Traditional Chinese Medicine helps determining the overall energy of the patient. Chills, slow metabolism, pale skin, low-grade fever, etc., point towards a cold condition. Feeling heat in the body, increased metabolism, flushed skin, high fever, etc., point towards a hot condition.

Interior/Exterior – This guiding principle the Traditional Chinese Medicine elucidates symptoms in terms of the location of the disease. Exterior symptoms are the symptoms affecting the skin, hair, muscles, peripheral nerves, joints, and blood vessels. Exterior conditions result from the invasion of the body by the disease causing organisms and are usually acute. Exterior conditions are superficially located and have a short duration. Interior symptoms are the symptoms affecting the deep vessels and nerves, organs, bones, brain, and spinal cord. Interior conditions are the outcome of the disease causing organisms or pathogens entry into the interior of the patient’s body.

Diagnosis in Traditional Chinese Medicine

The diagnosis in TCM consists of the following main steps –

Observation/Looking at the Patient – The practitioner keenly looks at a patient in order to determine the overall state of disease or imbalance. Different types of body shapes and constitutions point towards different elements of the five elements theory. For example, small hands, pointed chin and head, along with curly hairs or a small amount of hair represent fire element whereas thin and tall body shape represent wood element.

Extensive Interview – The practitioner of Traditional Chinese Medicine asks questions about the symptoms, origin of the current problem, patient’s medical history, eating habits and diet, emotional issues both current and past, partner relationships, family relationships, work issues, stress, living conditions, environmental conditions, dreams, quality of sleep, etc.

Listening and Smelling – The Traditional Chinese Medicine’s practitioner checks how the patient’s voice sounds, for example, a loud and coarser voice represents an excess pattern, a low and weak voice reveals a deficient pattern, talking incessantly indicates a heat pattern, muteness represents a cold pattern, etc. An acute onset of hoarseness in voice points towards exterior pathogenic wind, especially, if there is soreness and redness of throat. A chronic hoarse voice represents an interior disease such as that caused by deficiency in Lungs’ Qi or Yin.

The secretions and excretions having foul odor are attributed to heat and excess type patterns whereas the secretions and excretions having little odor represent cold and deficiency type patterns. Belching with a sour or foul odor shows retention of food whereas urgent diarrhea with foul smelling stools represents damp heat in the patient’s large intestine. Foul smelling breath indicates heat in stomach.

Pulse Diagnosis – Although in the Modern medicine the pulse has a minor diagnostic role to play, it is of prime value in the Chinese medicine. Pulse diagnosis offers valuable information on the state of a patient’s blood, Qi, Yin, Yang, individual organs, and the constitution. In TCM, the practitioner observes six pulses in each wrist of his/her patient – three superficial pulses and three deep pulses at specific points along the patient’s radial artery. Practitioners describe pulse in terms of frequency, volume, and rhythm. They categorize a pulse as floating, slippery, or thready type.

Tongue Examination – In the Chinese medicine, the tongue is believed to be a vital measure of human health. The tongue has crucial relationships and connections to the meridians and the internal organs. The tongue has an exclusive relationship with a person’s heart as the heart opens to the tongue. Tongue is said to flowers into the heart or tongue is regarded to be an offshoot of a person’s heart.

Tongue Examination in Traditional Chinese Medicine (TCM) - AdidarwinianIn the Traditional Chinese Medicine or TCM, a pinkish or light red tongue with a thin white coating is considered normal. Texture, color, size, shape, and coating of the tongue very much assist in diagnosis. A white tongue represents deficiency of energy (Qi), moisture, or blood whereas a very red tongue represents a fever or an inflammation. A very red tongue shows too much internal heat or dampness condition. Each part of the tongue, in this traditional system of medicine, is said to correspond to the state of an organ. For an instance, the heart and lungs are represented by the tip of a person’s tongue.

All the above mentioned diagnostic techniques provide comprehensive information about the state of a patient to the practitioner of this traditional system of medicine.

Therapies Used in Traditional Chinese Medicine (TCM)

Acupuncture – Acupuncture is a healing method which involves insertion of needles into the patient’s skin at specific points in order to normalize the flow of energy (Qi).

Acupuncture in Traditional Chinese Medicine - Adidarwinian

Chinese Herbal Medicine – Chinese herbal medicine involves the use of herbal remedies to treat energy imbalances and diseases. The remedies used in Chinese medicine are derived not only from plants, but also from the animals, and also include mineral substances. The international trade in seahorses for their use in Traditional Chinese Medicine (TCM) is leading to rapid decline in the population of these biological marvels. Seahorses are the only animals (seahorses are actually fishes) in the entire animal kingdom having pregnancy in males (see this interesting paper – Seahorse – Male Endurance – Roles Swapped!!). The remedies are combined in formulas and are prescribed as teas, capsules, pills, tinctures, and powders.

Chinese Herbal Medicine - Adidarwinian

Moxibustion – Moxibustion involves the burning of a small herb called mugwort on or near the skin. Moxibustion helps stimulate the flow of energy (Qi), strengthen the blood, and maintain general health.

Chinese Massage Therapy – Massage therapy of Traditional Chinese Medicine is described as Tuina or Tui Na, which literally means “push and pull”. Tuina or Chinese massage therapy works with the energy system of a person’s body and helps bringing the body back into the balanced state. As this therapy is based on the same meridian points as used in the acupuncture, it is often described as “acupuncture without needles” or “needleless acupuncture” or “acupressure”.

Qigong – Qigong means the skill (gong) of attracting energy (Qi). Qigong is a kind of exercise therapy that optimizes the flow of Qi in the body. Qigong is comprised of postures, movements/exercises, breathing techniques, and meditation techniques. It purifies the Qi and increases sense of well-being.

Tai Chi – Tai Chi or Tai Chi Chuan (Supreme Ultimate Boxing) is actually an ancient Chinese martial art for self-defence. It consists of breathing techniques, meditation techniques, and body movements, and is practiced in slow motion. Tai Chi helps in reducing stress, provides relaxation, and promotes health.

Cupping – In cupping therapy of Traditional Chinese Medicine, a glass cup is warmed by burning a flammable substance or a cotton ball inside the cup; this removes all the oxygen and creates a vacuum. The cup is turned upside-down and placed over a specific area on skin. The vacuum helps in anchoring the cup to the skin and pulls the skin upwards on the inside of the glass. Drawing up of the patient’s skin helps opening the skin’s pores. This stimulates the flow of blood, harmonizes the flow of energy (Qi), removes obstructions, and helps in the elimination of toxins.

Dietary Therapy – According to the Traditional Chinese Medicine, a person’s diet helps in maintaining a perfect balance of vital energy (Qi), and thus, contributes to good health. Diet is believed to be one of the three sources of Qi, the other two being – heredity and environment. Therefore, in the Traditional Chinese Medicine, a person’s diet plays an important role in causing diseases. The Chinese diet is based on the fundamentals laid down by the theory of five elements and the theory of eight guiding principles.

Dietary Therapy in Traditional Chinese Medicine (TCM) - AdidarwinianFood articles are said to possess Yin and Yang properties. Food articles are also described as warming, cooling, moistening, and drying types. Food is selected according to a patient’s particular needs and constitution, for example, a person suffering from a hot-dry condition is advised not to eat food articles that are broiled, fried, spicy, or contain high fat.