Captive wild animal encounters are hugely popular, thanks partly to social media. But our investigation shows many creatures ...

LOS ANGELES -- In order to keep up with the animals and tell their story, the "Animals Up Close With Bertie Gregory" crew had to push themselves to the limits. As a wildlife filmmaker and National ...

Mating calls and rituals can be intercepted, or drowned out, by invasive species. Scientists are just starting to understand ...

The twins were born to a 22-year-old female named Mafuko, who lost her own mother to armed individuals. The extremely endangered species currently numbers at just over 1,000.

Filmmaker Bertie Gregory's new documentary special captures the extreme challenges facing the world's fastest land animal. In his new documentary special, Bertie Gregory follows cheetahs during the ...

The heroes who saved the world's last tigers Despite early conservation successes, by the 1990s the world's tiger population was under dire threat. In this beautifully photographed feature, National ...

The huge fish are dwindling in the wild, but thriving in private homes. Scientists see an opportunity for their recovery. In Thailand, some threatened megafish, like this giant barb photographed at ...

Much of the three-part “Planet Weird,” which goes out of its way to find the nutty in nature, is simultaneously fascinating and disgusting—the much sought-after synthesis of wildlife programming: ...