May 23 -- Here's the scene: A young woman who is feeling a hormone flush looks approvingly at someone other than her spouse and fantasizes about spending a weekend at the beach with a guy she doesn't ...

Courting is as unique to a species as dietary habits or dwelling. Some mating rituals seem almost aggressive, while others are dance-like and graceful. They can even be beautifully intimate, mimicking ...

The German cockroach evolved to live only in human environments. This means it's very good at adapting to pest control methods — even if it means changing its mating rituals. And now we turn to ...