Nature

The margay is the tree-climbing champ of the cat world.

Otters are super cute little gymnastic socialites. Are they intelligent or just specialists? Learn more in this episode of "Animal IQ."

Jim Estes tries to figure out what caused the collapse of a once-thriving kelp forest.

Are dolphins as intelligent as we think they are or do they just seem that way? Learn more in a new episode of "Animal IQ".

As shark sightings catch our attention this summer, it is time to rethink how we communicate about these unique and imperiled fish.

Playtime with siblings is essential for all young cats.

Meet the pioneering scientists whose surprising discoveries transformed our understanding of nature.

Watch osprey parents raise their chicks in a Live 4K feed from Connecticut by filmmaker Jacob Steinberg.