Sea Hunters

The whales use a clever hunting technique called "bubble feeding" to catch quantities of herring.

Marine biologists Eve Jourdain and Richard Kaoliussen have spent two years studying orcas in Norway.

In the ocean's depths, swift and agile sea lions perform underwater maneuvers to outwit enemies.

Under the burning sun of Cape Cross, large colonies of seals gather on Namibia's Skeleton Coast.

Whales are regularly hunted by a predator whose diminutive size hides its gruesome intentions.