http://cvcl.mit.edu/hybrid/cat2.jpg

http://i.telegraph.co.uk/multimedia/archive/01373/eyes_1373075c.jpg

cat's eyes (on a cat, not a road) are very different from human eyes. there's no white bit to them. why is this? the bl;ack bit is much bigger as well. shouldn't eyes be more or less the same for everyone? do any animals have the same eyes as humans?