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The phrase "fight like cats and dogs" reflects a natural tendency for the relationship between the two species to be antagonistic. [8] [9] [10] Other phrases and proverbs include "The cat is mighty dignified until the dog comes by" and "The cat and dog may kiss, but are none the better friends." [11]
Osmoregulation is the active regulation of the osmotic pressure of an organism's body fluids, detected by osmoreceptors, to maintain the homeostasis of the organism's water content; that is, it maintains the fluid balance and the concentration of electrolytes (salts in solution which in this case is represented by body fluid) to keep the body fluids from becoming too diluted or concentrated.
The aromatic/arginine or "ar/R" selectivity filter is a cluster of amino acids that help bind to water molecules and exclude other molecules that may try to enter the pore. It is the mechanism by which the aquaporin is able to selectively bind water molecules and so to allow them through, and to prevent other molecules from entering.
Like dogs, cats have sensitive ears that can move independently of each other. Because of this mobility, a cat can move its body in one direction and point its ears in another direction. The rostral, caudal, dorsal, and ventral auricular muscle groups of each ear comprise fifteen muscles that are responsible for this ability. [5]
The English-language idiom "raining cats and dogs" or "raining dogs and cats" is used to describe particularly heavy rain. It is of unknown etymology and is not necessarily related to the raining animals phenomenon. [1] The phrase (with "polecats" instead of "cats") has been used at least since the 17th century. [2] [3]
Cats pant after playing to keep themselves from overheating. Cats only sweat through the paws, so cooling down can be harder for them especially if they are one of the longhaired cat breeds.. Dr ...
Their photopigments can absorb the red- and blue-spectrum frequencies of sunlight (thus reflecting a greenish color) to split water molecules into hydrogen ions and oxygen. The hydrogen ions are used to react with carbon dioxide to produce complex organic compounds such as carbohydrates (a process known as carbon fixation ), and the oxygen is ...
As most cat owners surely know by now, receiving a slow blink from your cat is a great honor; in cat terms, shutting your eyes for any length of times means that you're feeling comfortable in that ...