As you probably know, the female praying mantis will sometimes bite her mate’s head off. It’s not something that the insects make a habit of, exactly – they probably only do it when a male is ...

A calm little praying mantis sits perfectly still as a spider creeps nearby. For a moment, you might think the mantis is meditating. It is named for its “praying” pose, after all. Then, in a blink, ...