In the 1930s, two Russian biologists discovered that color change in Siamese kittens depend on their body temperature. Siamese cats carry albino genes that work only when the body temperature is above 98° F. If these kittens are left in a very warm room, their points won’t darken and they will stay a creamy white.
.
A cat's jaw has only up and down motion; it does not have any lateral, side to side motion, like dogs and humans.
.
A cat almost never meows at another cat, mostly just humans. Cats typically will spit, purr, and hiss at other cats.
.
Cats with long, lean bodies are more likely to be outgoing, and more protective and vocal than those with a stocky build.