Cat facts (1)

Both humans and cats have identical regions in the brain responsible for emotion.
A cat's brain is more similar to a man's brain than that of a dog.
A cat has more bones than a human; humans have 206, but the cat has 230 (some cites list 245 bones, and state that bones may fuse together as the cat ages).
Cats have 30 vertebrae (humans have 33 vertebrae during early development; 26 after the sacral and coccygeal regions fuse)
The cat's clavicle, or collarbone, does not connect with other bones but is buried in the muscles of the shoulder region.
 This lack of a functioning collarbone allows them to fit through any opening the size of their head.
The cat has 500 skeletal muscles (humans have 650).
Cats have 32 muscles that control the outer ear (compared to human's 6 muscles each). A cat can rotate its ears independently 180 degrees, and can turn in the direction of sound 10 times faster than those of the best watchdog.
Cats' hearing is much more sensitive than humans and dogs.
Cats' hearing stops at 65 khz (kilohertz); humans' hearing stops at 20 khz.
A cat sees about 6 times better than a human at night, and needs 1/6 the amount of of light that a human does - it has a layer of extra reflecting cells which absorb light.
Recent studies have shown that cats can see blue and green. There is disagreement as to whether they can see red.
A cat's field of vision is about 185 degrees.
Blue-eyed, pure white cats are frequently deaf.
It may take as long as 2 weeks for a kitten to be able to hear well.  Their eyes usually open between 7 and 10 days, but sometimes it happens in as little as 2 days.
Cats can judge within 3 inches the precise location of a sound being made 1 yard away.
Cats can be right-pawed or left-pawed.
A cat cannot see directly under its nose.
Almost 10% of a cat's bones are in its tail, and the tail is used to maintain balance.
The domestic cat is the only species able to hold its tail vertically while walking. You can also learn about your cat's present state of mind by observing the posture of his tail.
If a cat is frightened, the hair stands up fairly evenly all over the body; when the cat is threatened or is ready to attack, the hair stands up only in a narrow band along the spine and tail.