Security News > 2024 > April > Friday Squid Blogging: The Awfulness of Squid Fishing Boats
Baleen whales, including humpbacks, right whales and blue whales, have evolved a unique larynx that allows them to produce super low-frequency sounds which can travel huge distances.
Toothed whales which include sperm whales, dolphins, porpoises and orcas, are the among loudest animals on Earth and use ultra-fast clicks for echolocation, to "See" their world, as well as soft burst pulses and whistles to communicate.
The group hypothesises that whale sounds contain complex, intelligent messages akin to languages used by humans or potentially extraterrestrials.
Launched in 2020, Ceti, led by marine biologist David Gruber, has been continuously recording a group of whales off the coast of Dominica, an island in the Caribbean, using microphones on buoys, robotic fish and tags fitted to the whales' backs.
Sperm whales, which have the largest brains of any animal, gather at the ocean's surface in family groups and communicate using Morse code-like sequences of clicks known as codas.
The group of sperm whales that Ceti has been working with is made up of around 400 mothers, grandmothers and calves.