This guide to building a basic birdhouse is easy as it gets—and rest assured the nesting birds in your backyard are going to love it.

Did you know that the massive atlas moth lives for only a couple of weeks? Discover more amazing facts about these incredible insects.

Mysterious and cool, jellyfish drift through our oceans, some using their stinging tentacles to capture prey and some capable of glowing in the dark.

Tarsiers aren't monkeys and they have the biggest eyes of any mammal. Learn more about these extraordinary and ancient primates.

10 Examples of Animal Species Working Together in the Wild These partnerships show how animals rely on one another to survive ...

The ugliest animals on the planet might not win beauty pageants, but their unattractive traits allow them to survive in harsh environments.

Albatrosses can soar at high speeds for up to eight hours without even moving their wings. Learn more about these amazing birds and how to help them.

Did you know the sex of an alligator is determined by the temperature? Discover more fascinating facts about these unique reptiles.

Most trees can be easily identified by inspecting their leaves, seed pods, flowers, bark, or shape.

Some species can glide, most lack eyelids, and they all can stick to any surface except Teflon. Get to know the extraordinary gecko!

The sand dollar—AKA "sea biscuit" or "sand cake"—is purple and hairy in its prime. See nine things you didn't know about these fascinating creatures.

A food web is a diagram showing an ecosystem's complex feeding relationships. Learn about types of food webs and how they differ from a food chain.