Intelligent social swimmers

Bottlenose dolphins live in flexible groups called pods. They are known for their problem solving and curiosity, and they are often seen riding bow waves.

Whistles and clicks

Dolphins use rapid clicks to echolocate, building a sound picture of prey and obstacles. They also whistle to stay in touch. Each dolphin develops a signature whistle that works a little like a name, and others can copy it when calling a particular individual.

Living alongside people

Coastal dolphins face pollution, bycatch and boat noise. Noise can mask their signals and make it harder for them to find food, so slower boat speeds near dolphin habitat can make a real difference.

Listen

What it sounds like: Clicks for echolocation and whistles for social contact.

To hear independent recordings, try Freesound. Check each recording’s licence before reusing it. See Media & Sources.

Further reading: Ocean Giants: How Whales Use Sound to Talk Across Oceans

Conservation status follows the IUCN Red List as we understand it at the time of writing. Assessments are revised regularly, so please check the IUCN Red List for the current listing.