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An ectotherm (from the Greek ἐκτός (ektós) "outside" and θερμός (thermós) "heat"), more commonly referred to as a "cold-blooded animal", [1] is an animal in which internal physiological sources of heat, such as blood, are of relatively small or of quite negligible importance in controlling body temperature. [2]
Fever coat is an effect known in domestic cats, where a pregnant female cat has a fever or is stressed, causing her unborn kittens' fur to develop a silver-type color (silver-grey, cream, or reddish) rather than what the kitten's genetics would normally cause. After birth, over some weeks the silver fur is replaced naturally by fur colors ...
Cold-blooded is an informal term for one or more of a group of characteristics that determine an animal's thermophysiology. These include: Ectothermy, controlling body temperature through external processes, such as by basking in the sun; Poikilothermy, the ability of an organism to function over a wide internal temperature range
Thermoregulation is the ability of an organism to keep its body temperature within certain boundaries, even when the surrounding temperature is very different. A thermoconforming organism, by contrast, simply adopts the surrounding temperature as its own body temperature, thus avoiding the need for internal thermoregulation.
Many animals have dark pigments such as melanin in their skin, eyes and fur to protect themselves against sunburn [44] (damage to living tissues caused by ultraviolet light). [ 45 ] [ 46 ] Another example of photoprotective pigments are the GFP -like proteins in some corals . [ 47 ]
Cats are limited in their perception of color. Human eyes have 10 times more cone cells than feline eyes, meaning we can see a larger range of colors than cats, according to Purina.
A new study suggests cats show their true colors in their fur. Veterinary experts say it's possible that the color of a cat may be a sign of how aggressive they are toward humans.
Cat training is the process of modifying a domestic cat's behavior for entertainment or companionship purposes. Training is commonly used to reduce unwanted or problematic behaviors in domestic cats, to enhance interactions between humans and pet cats, and to allow them to coexist comfortably.