Without a doubt, they do.

Sure, I got cat, fish, quill. None of them are the same. They are like human beinings, quiet, or nauty. haha

I guess yes. They have their own petsnality. And one of my friends have two cats. One seems to be very active and the other one seems to suffer from depression.

yes, i think so . i used to have a cat . it was shy when my family had some strangers visting my house.and it often hid himself behind the door.

Sure , Both of my dogs have their personality. I always reagrad them as little childern of mine. for example, one of dog,it's name is "Mar ge". I will tell u she is a simple and childish,eating and playing is her life. She always want me trying to share my food with her,even something she have nerver taste that. So far,beside his doggy-food, she also like to eat vegetable,apple,tomato,egg roll : ) . If I didnt share with her,she will bark and being angry to me. That's her! (If there is sth wrong with my grammer in this,I feel sorry, I am still learning to write article myself :) )