Animals & Insects

National Geographic photographer Joel Sartore is documenting the world's captive animal species. His new book is Vanishing: The World's Most Vulnerable Animals. Originally broadcast Feb. 27, 2017.

A look at the vast, bizarre world of insects, and why we can't live without them with Anne Sverdrup-Thygeson author of the new book 'Buzz, Sting, Bite.'

Paul Nicklen has spent decades documenting the Arctic and the Antarctic. He often finds himself in frigid waters, just a camera's length away from deadly predators. Originally broadcast June 6, 2017.

When Frans de Waal started studying nonhuman primates, in the Netherlands more than 40 years ago, he was told not to consider the emotions of the animals he was observing.

We think of whales as creatures of the sea, but scientists now believe that 40 million to 50 million years ago, whales had four legs and lived at least part of their lives on land.

Can we eat meat ethically? Journalist Camas Davis tells us how we can.

Feline behavior specialist Sarah Ellis explains how you can train your kitty to come on command, take medicine and stop waking you up in the middle of the night. Originally broadcast Sept. 12, 2016.