The Arctic’s summer melt is one of the most dramatic spectacles on our planet. See how belugas, foxes, polar bears, and seabirds cope when nearly 3 million square miles of snow and ice breaks open.

Follow the journey of hundreds of millions of salmon from the Pacific Ocean to the mountain streams where they were born. See how these fish sustain grizzlies, killer whales, wolves, and bald eagles.

Each year, over a million wildebeests and zebras migrate to the Serengeti, making it a temporary paradise for predators. Follow one lion family’s struggle to survive in the grasslands once these animals move on.

Each winter, armies of dolphins, sharks, whales, seals, and gannets hunt the billions of sardines that swim up South Africa’s east coast. Witness the greatest gathering of predators on the planet, captured from every angle.

Okavango’s Great Flood turns arid plains into a beautiful resource for wildlife. Witness great journeys, battles for territory, and struggles for survival as the magical water draws in elephants, hippos, lions, buffalo, birds, and more.

Alaska’s summer sun sparks massive phytoplankton growth, transforming the surrounding waters into some of the richest on earth. See how this explosion of plant life helps sustain all underwater life.