
Big Beasts features some of the world's most massive species filmed across 17 countries, including the gray whale, the elephant seal, the giant otter, the gorilla, the hippo, the brown bear, the ostrich, the orangutan, the tiger and the polar bear. Viewers will see that it's not easy being big — the larger the animal, the greater the challenges they face — as the series captures rare and first-ever footage using specialized equipment and next-generation filming techniques.

Embarking on an epic journey for food, a mother whale leads her calf on the longest migration of any mammal.

A four-ton elephant seal returns to his breeding beach on the cusp of summer — and quickly learns the competition for females is fierce.

In the Brazilian Pantanal — a wetland larger than England — a six-foot otter attempts to raise her cubs in the shadow of hungry jaguars.

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.

In Earth's largest inland delta, Africa's deadliest mammal fights to keep his family afloat as the dry season approaches.

Rocky Mountain summers are fleeting, leading local bears to gain weight, sharpen defenses and engage in a dynamic fight for domination.

A blazing sun scorches the African savanna, where the planet's biggest bird protects his eggs and giraffes struggle to fuel their towering bodies.

In Borneo, apes and monkeys train their babies in the treetops, but with gravity against them, the stakes are high — and crocodiles lurk below.

Monsoon season drives giants toward higher ground, and big cats battle it out to claim dwindling territory in an Indian valley.

Subzero temperatures force polar bears to bulk up — but as summer returns and the planet grows warmer, they find themselves on thin ice.
Complete episode guide for Big Beasts with detailed information about every season and episode including air dates, summaries, ratings, and streaming availability in United States.
This episode guide is organized by seasons, making it easy to track your viewing progress or find specific episodes. Use the episode information to plan your binge-watching sessions or catch up on missed episodes.