Extras
Cracking the Koala Code - Preview
Premieres Wednesday, May 16, 2012 at 8:00 p.m. ET/PT. Check your local listings.
Cracking the Koala Code - Preview
A fight erupts between two koalas after one of the males invades the other's territory.
A Battle for Territory
A White Lion Challenges a Hyena Clan
A white cub, now almost a grown lion, challenges an approaching clan of hyenas.
A White Lion Challenges a Hyena Clan
Two lionesses attack an unfamiliar and aggressive male who approaches the pride.
A Fight Between Lions
Premieres Wednesday, April 18, 2012 at 8:00 p.m. ET/PT. Check your local listings.
River of No Return - Preview
Isaac and Bjornen come across a group of wolf pups right off the trail.
Wolf Pups Right Off the Trail
A pack of wolves isolates an injured elk on a ridge. Then, something remarkable happens.
This Unexplained Companion
Isaac and Bjornen play harmonica deep in the Frank Church-River of No Return wilderness.
This Land is My Land
In Chamberlain Basin, Isaac and Bjornen watch as a pack of wolves eyes white-tailed deer.
An Ancient Game..
Ocean Giants, "Voices of the Sea" - Preview
Airs Wednesday, April 11, 2012 at 8:00 p.m. ET/PT. Check your local listings.
Ocean Giants, "Voices of the Sea" - Preview
Airs Wednesday, April 4, 2012 at 8:00 p.m. ET/PT. Check your local listings.
Ocean Giants: Deep Thinkers
Ocean Giants "Giant Lives" - Preview
Airs Wednesday, March 28, 2012 at 8:00 p.m. ET/PT. Check your local listings.
Ocean Giants "Giant Lives" - Preview
Visit from an Infant Sperm Whale
An infant sperm whale, separated from its mother, approaches cameraman Doug Allan.
Visit from an Infant Sperm Whale
Male humpbacks have become famous for the compositions they improvise together.
Songs of the Humpbacks
The Oldest Mammal on the Planet
Living up to 200 years, Bowhead Whales are one of the oldest animals on the planet.
The Oldest Mammal on the Planet
What will dolphins make of the silvery rings of air produced by a bubble machine?
Dolphin Bubble Play
How does the size of urban raccoon territory compare to that of its rural counterpart?
Urban Territories
The connection between the raccoon's dexterity, immense curiosity, and intelligence.
A Sense of Curiosity
Intelligence, adaptability and diet help the raccoon thrive in urban landscapes.
Living for the City
Animal play teaches animals about how things work, and the physics of the world.
The Importance of Play
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