The Grey WhaleEmbarking on an epic journey for food, a mother whale leads her calf on the longest migration of any mammal.
The Elephant Seal
E2
The Elephant SealA four-ton elephant seal returns to his breeding beach on the cusp of summer—and quickly learns the competition for females is fierce.
The Giant Otter
E3
The Giant OtterIn the Brazilian Pantanal—a wetland larger than England—a six-foot otter attempts to raise her cubs in the shadow of hungry jaguars.
The Gorilla
E4
The GorillaMakumba 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.
The Hippo
E5
The HippoIn Earth's largest inland delta, Africa's deadliest mammal fights to keep his family afloat as the dry season approaches.
The Brown Bear
E6
The Brown BearRocky Mountain summers are fleeting, leading local bears to gain weight, sharpen defenses, and engage in a dynamic fight for domination.
The Ostrich
E7
The OstrichA blazing sun scorches the African savanna, where the planet's biggest bird protects his eggs and giraffes struggle to fuel their towering bodies.
The Orangutan
E8
The OrangutanIn Borneo, apes and monkeys train their babies in the treetops, but with gravity against them, the stakes are high—and crocodiles lurk below.
The Tiger
E9
The TigerMonsoon season drives giants toward higher ground, and big cats battle it out to claim dwindling territory in an Indian valley.
The Polar Bear
E10
The Polar BearSubzero temperatures force polar bears to bulk up—but as summer returns and the planet grows warmer, they find themselves on thin ice.
Cast of Season 1
Tom HiddlestonSelf - Narrator (voice)
Tom Hugh-JonesProducer
Grant MansfieldProducer
Martha HolmesProducer
Season 1 Ratings & Reviews
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