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, ...

There aren't many fans of spiders, and most people probably don't spend much time worrying about what spiders eat. The average person thinks of a spider as a carnivore, eating flies trapped in their ...