This list points you to valuable sources for biodiversity information—everything from local and national environmental organizations to a grassroots online community that unites volunteers around the world.

Compare contemporary myths with those from the 19th century. Read trickster tales from 55 tribal groups. And peruse illustrated Haida myths.

Like today's crime-scene investigators, paleontologists study clues left behind. See firsthand what trackways—fossilized footprints—can tell them about dinosaur behavior.

What's it like to climb into a deep submergence vehicle and descend to the ocean floor? See for yourself with this video look, narrated by a scientist who has made more than 30 trips.

Discover how artists bring dinosaur skeletons to life with skin, feathers, and other features. Then try to create your own lifelike Velociraptor from a skeletal drawing.