'Planet Earth': Extremes
What animal travels 5,000 miles for a meal? Where can you find a 300-foot-tall pile of bat droppings? Watch these clips from the new 'Planet Earth' TV series to find out.'Planet Earth': Extreme Planet
Deep Divers
Shearwaters and dolphins hunt mackerel in tandem, corralling the tightly packed school of fish. The dolphins push the mackerel towards the surface as the seabirds dive up to 60 feet to grab their prey.
(Episode: 'Deep Oceans')
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Big Batcave
Three million wrinkle-lipped bats live here, leaving a mound of guano (bat droppings) more than 300 feet high. It is covered with cockroaches, which devour anything in their path, including bats that fall to the cave floor.
(Episode: 'Caves')
Whale of a Journey
After traveling 5,000 miles to feed, humpback whales form intricate bubble nets to capture krill in polar waters. Once the krill are concentrated in a small area, the whales' meal is served.
(Episode: 'Shallow Seas')
Deepest Cave Shaft
Base jumpers plunge into Mexico's Cave of Swallows, which drops 1,300 feet to the bottom -- nearly as deep as the Empire State Building is tall.
(Episode: 'Caves')
Largest Glacier
The Baltoro Glacier in the Karakoram Mountains of Pakistan is 43 miles long and over three miles wide, making it the biggest mountain glacier on earth. The glacier is so large that it can be seen from space.
(Episode: 'Mountains')
More About Planet Earth
Check out a selection of videos from Episode 1, 'Pole to Pole.'
- 'Pole to Pole' Video Clips
Watch 'Planet Earth'
This series concluded April 29 on Discovery Channel and Discovery HD Theater. Check listings for rebroadcasts of all episodes.
Buy the DVD
'Planet Earth' Features
Check out these quizzes and videos from the 'Planet Earth' TV series.
- Thrill of the Hunt
- First Time on Film
- Animal Courtship
- 'Pole to Pole'
- By the Numbers Quiz
- Endangered Animals
- Animal Groups Quiz
Learn More About the Planet on AOL Research & Learn
Earth Day Videos
Earth Day Network President Kathleen Rogers talks about Earth Day and the 'Planet Earth' TV series.
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Today's Feature
Wondering what you can do in your everyday life to help the planet? Check out Green Daily, a new Earth-friendly blog from AOL. It covers all aspects of "green" living, from tips to product reviews, news and more!