05/17/2010 05:12 am ET Updated Dec 06, 2017

Silverback Gorilla Nearly Attacks Wildlife Expert Mireya Mayor (VIDEO)

National Geographic's Nat Geo Wild network will launch in the U.S. on March 29, with programming that focuses on wildlife and the natural world. And from the looks of this clip, wild is clearly the right choice of word.

In this showdown between two silverback gorillas, as wildlife expert Mireya Mayor explains the dominant male behavior, she almost gets involved in the face-off herself when a gorilla charges at her.

Mireya, understandably terrified, keeps her cool, especially when it seems that the gorilla is bluffing. But Mayor is aware that she's treading on dangerous ground.

"If he wanted to, he could rip my head off, any one of us," Mayor said. "Strong, strong animal."