Learn what a Calliope hummingbird looks like, where to find these tiny birds in the U.S., and how to attract them.

Explore the intense multitasking required to fly military helicopters and the rigorous training U.S. pilots undergo ...

These expert-backed tips from an entomologist will help banish fruit flies and keep your kitchen pest-free for good.

Watch turret spiders, wormlions, assassin bugs and dragonfly babies use stealth, speed and lethal weapons to dispatch their prey.