Close Menu. Travelling or based outside United States? Video availability outside of United States varies. Sign in to see videos available to you. Whales features the ocean's most majestic creatures. This Wild Window contains spectacular images of humpback whales, sperm whales, and blue whales.

Whales and dolphins are some of the most remarkable creatures to be found on the planet. They not only represent some of the largest, but also have within their number the most ambitious commuters and deepest divers in the world. Here are some of the records they hold!

Sperm whales are icons of the deep, but despite their gigantic size and dramatic stature, their open ocean home is still mostly a mystery. Living together as a family, they can be found throughout the open ocean, spending time in the deep to find food, which makes it a challenge for scientists to document their behaviour. When the Blue Planet II team set out to try and capture this secret world, they enlisted the help of Marine Biologist Dr Shane Gero, who has been studying sperm whales for over 15 years. Until now, scientific tags have been fitted to the whales mostly to monitor their sound and movement, creating a three-dimensional model of their underwater world, but new camera technology is allowing us to immerse ourselves in the depths of the ocean as sperm whales embark on their deep-sea hunt.