Whales are a group of mammals that live in oceans. They include some of the largest animals on Earth. The blue whale is the ...

Despite the extreme conditions, these whales manage to hunt two kilometres deep, surviving on a single breath for near to an hour, many times each day. Marine mammals as a group are accomplished ...

The deepest recorded dive was 2,992 metres, breaking the record for diving mammals. Experts have suggested that this dive was unusually deep for this species. A more normal depth would be 2,000 metres ...

The sperm whale is the world's largest predator and dives deeper than any other mammal - up to depths of ... is crucial to their conservation. Dive category: This is a specialist dive which ...