Think you know an insect when you see one? Learn what makes an insect an insect, then test your skills with earthworms, spiders, praying mantises and fireflies.

It's gardening season, and many people are worrying about the weeds in their gardening beds. Instead, they should be asking what classifies something as a weed. And can weeds actually be useful?

Join Willy the Woodchuck on a river adventure. Learn how rivers start, grow and travel from source to sea.

Canada geese aren’t mean—they’re protective. Learn why goose encounters increase in spring and how to safely share space with these devoted parents.

Can you solve this fun nature riddle? Follow clues to discover a sneaky organism that can climb, grows berries and has leaves of three.

Not all deciduous trees seem know they are supposed to lose their leaves. These leaves that just can't seem to let go get the first part of the equation right. The green color fades, but that's where the process stops. Those leaves never seem to fall.

Any time of year is a good time to look for animal tracks, and they can actually tell us quite a bit about who left them.

Plants are clever in many ways! One of the most impressive and diverse adaptations is how they spread their seeds.