From: National Geographic Channel on Sat, May 08 2010 4:39 AM

Young wildebeest calves play the fool out on Banyini.

From: National Geographic Channel on Sat, May 08 2010 4:39 AM

Young wildebeest calves play the fool out on Banyini.

From: National Geographic Channel on Sat, May 08 2010 4:39 AM

A herd of 35 elephants head down to Malilangwe Dam to drink after ripping a baobab tree to shreds.

From: National Geographic Channel on Sat, May 08 2010 4:39 AM

A herd of 35 elephants head down to Malilangwe Dam to drink after ripping a baobab tree to shreds.

From: National Geographic Channel on Fri, May 07 2010 4:00 AM

Tensions flare aboard the mothership. The crew must settle the score if they want to catch their prize.

From: National Geographic Channel on Fri, May 07 2010 4:00 AM

After drawing a great white into the cradle, the crew takes blood samples and tags the shark before releasing it.

From: National Geographic Channel on Fri, May 07 2010 4:00 AM

Mexican authorities check in on the Great White expedition team. The crew prepares for the worst.

From: National Geographic Channel on Fri, May 07 2010 4:00 AM

Mexican authorities check in on the Great White expedition team. The crew prepares for the worst.

From: National Geographic Channel on Fri, May 07 2010 4:00 AM

The crew explores a dangerous situation out at sea — and comes face to face with a great white.

From: National Geographic Channel on Fri, Apr 30 2010 8:01 PM

The Iceland volcano’s ash is powdery mixture of extremely sharp glass-like particles.

From: National Geographic Channel on Fri, Apr 30 2010 8:01 PM

The Iceland volcanic eruption has a unique magma chemistry — and it’s very explosive.

From: National Geographic Channel on Fri, Apr 30 2010 8:01 PM

The Iceland volcanic eruption has a unique magma chemistry — and it’s very explosive.

From: National Geographic Channel on Fri, Apr 30 2010 8:01 PM

A film crew ventures deep into the ash cloud to interview a woman who refuses to abandon her small farm.

From: National Geographic Channel on Fri, Apr 16 2010 12:19 PM

It’s springtime on the prairie, and the prairie dogs emerge in the morning chill to find an intruder in their midst.

From: National Geographic Channel on Fri, Apr 16 2010 12:19 PM

Conservationists work to restore the vast, open spaces that Lewis and Clark once explored on America’s living prairie.

From: National Geographic Channel on Fri, Apr 16 2010 12:19 PM

The American Prairie Reserve is one of the U.S.'s largest conservation efforts in history.

From: National Geographic Channel on Wed, Apr 14 2010 7:29 AM

Brutus certainly has a bear-size appetite, especially for Christmas cookies!

From: National Geographic Channel on Wed, Apr 14 2010 7:28 AM

Sometimes it requires more than one take to make it all work.

From: National Geographic Channel on Sat, Apr 10 2010 10:18 PM

A Shar Pei has a bad history with small dogs. Can Cesar drain some of Leo’s fighting energy?

From: National Geographic Channel on Thu, Apr 08 2010 5:30 PM

Scientists study the sleep habits of sloths in the wild in order to learn more about humans' need for sleep.