On a hot February morning, Galápagos National Park rangers released 50 giant tortoises back to Floreana Island—marking the beginning of a historic comeback.

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 ...

Tobacco hornworm caterpillars have no organs that resemble ears. Yet, scientists were able to figure out how they hear—and it could inspire next generation microphones.

LOS ANGELES -- BAFTA and Emmy Award-winner Bertie Gregory stepped onto ABC's On The Red Carpet Storyteller's Spotlight stage at this year's D23: The Ultimate Disney Fan Event. Fresh off the plane from ...