In this video we explore the world of whale and dolphin communication. They use sound in extraordinary ways — from the powerful clicks of sperm whales, reaching over 230 decibels, to the unique, individual whistles of bottlenose dolphins. While many of these sounds are used for echolocation, helping them navigate and hunt, some researchers believe they could also serve as a form of complex language.
Deep-diving whales use echolocation in the darkness of the deep sea to hunt, but when the sea is full of plastic, this ability can kill them.
A research expedition in the North Atlantic has found several groups of sperm whales along with many other whale species in an area where Norway wants to conduct deep-sea mining.
