Q: Why does my cat spray? I thought females didn't do that! A: Surprise, surprise! Spraying is a normal feline behavior, for females as well as males. Spraying is all about marking territory. It's the ...

From spraying mates with urine to changing one's sex, these are the most intriguing courtships in the animal kingdom.

Many animals have habits that most of us humans do not understand. Why do shrikes impale their food on thorns or barbed wire? Why do great horned owls nest so early, even brooding eggs and young in ...