From humpbacks learning the latest songs to sperm whales’ ‘clan codas’, drones and AI learning are helping reveal another dimension to the concept of culture

In 2015, the whale researcher Valeria Vergara pitched a small tent at the icy water’s edge on Somerset Island in the remote Canadian high Arctic, shrouded in a freezing fog so thick she struggled to see her own hands. She trailed a cord out to the coast and plopped a hydrophone into the water to record the calls of belugas.

As many as 1,000 of the whales, accompanied by their newborn calves, frequented the surrounding bay. Belugas’ ceaseless chatter, made up of dozens of unique sounds, is crucial to keeping these creatures connected in the dim, turbid waters of the Arctic.

Researchers listening off the Caribbean island of Dominica found variations in the mammals’ audible clicks when marine traffic was close

Sperm whales produce a specific pattern of clicking noises when they hear the noise of boats, researchers have found. The pattern is so distinct that the scientists who identified it said they can now use it to predict when ships are nearby.

Researchers from Project Ceti (the Cetacean Translation Initiative), a non-profit research organisation working to decode sperm whale communication, spent four years tuning in on the calls of 15 sperm whales off the coast of Dominica.

Female named Rounder surrounded by family members when about to give birth to her second calf

Scientists have managed to film a sperm whale giving birth while other female whales worked together to support the mother and her newborn.

A team from Project Ceti, an international effort seeking to understand how whales communicate, was in a boat near a pod of 11 whales off the coast of the Caribbean island of Dominica on 8 July 2023.