For centuries, humans have lived underground. Today, that ancient practice is under dire threat—even as cave life makes more ...

After being hunted to eradication in Washington and Oregon in the 1930s and 1940s, the gray wolf’s recovery in these states ...

Cockroaches that catch a ride on ants. Grasshoppers that climb aboard sheep. Hitchhiking animals are more common than you think.

"We're the future generation to take care of our planet." Teen recognized by National Geographic for raising awareness about ...

Narrated by Ryan Reynolds, National Geographic's "Underdogs" celebrates the misfits and oddballs of animal kingdom, and you ...