Seasons & episodes
1 season · 10 episodes
Episode 01
The Grey Whale
Embarking on an epic journey for food, a mother whale leads her calf on the longest migration of any mammal.
Episode 02
The Elephant Seal
A four-ton elephant seal returns to his breeding beach on the cusp of summer—and quickly learns the competition for females is fierce.
Episode 03
The Giant Otter
In the Brazilian Pantanal—a wetland larger than England—a six-foot otter attempts to raise her cubs in the shadow of hungry jaguars.
Episode 04
The Gorilla
Makumba is one of the best studied gorillas in the world. Now past his prime, he must find new ways to maintain his status as king of the jungle.
Episode 05
The Hippo
In Earth's largest inland delta, Africa's deadliest mammal fights to keep his family afloat as the dry season approaches.
Episode 06
The Brown Bear
Rocky Mountain summers are fleeting, leading local bears to gain weight, sharpen defenses, and engage in a dynamic fight for domination.
Episode 07
The Ostrich
A blazing sun scorches the African savanna, where the planet's biggest bird protects his eggs and giraffes struggle to fuel their towering bodies.
Episode 08
The Orangutan
In Borneo, apes and monkeys train their babies in the treetops, but with gravity against them, the stakes are high—and crocodiles lurk below.
Episode 09
The Tiger
Monsoon season drives giants toward higher ground, and big cats battle it out to claim dwindling territory in an Indian valley.
Episode 10
The Polar Bear
Subzero temperatures force polar bears to bulk up—but as summer returns and the planet grows warmer, they find themselves on thin ice.
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