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Whale and dolphin species guide

Find out more about whales and dolphins

There are 90 species of whales, dolphins and porpoises, known collectively as "cetaceans". From the enormous blue whale to the tiny vaquita and New Zealand dolphin, you will find information and amazing facts about many of these incredible creatures in our species guide.

All species

Amazon River dolphin (Boto)

Amazon River dolphin

Andrew’s beaked whale

Andrew’s beaked whale

Antarctic minke whale

Antarctic minke whale

Arnoux's beaked whale

Arnoux’s beaked whale

Atlantic humpback dolphin

Atlantic humpback dolphin

Atlantic spotted dolphin

Atlantic spotted dolphin

Atlantic white-sided dolphin

Atlantic white-sided dolphin

Australian humpback dolphin

Australian humpback dolphin

Australian snubfin dolphin

Australian snubfin dolphin

Baiji (Yangtze River dolphin)


Baird's beaked whale

Baird’s beaked whale

Beluga whale

Beluga whale

Blainville's beaked whale

Blainville’s beaked whale

Blue whale underwater

Blue whale

bowhead whale

Bowhead whale

Bryde's whale

Bryde’s whale

Burmeister's porpoise

Burmeister’s porpoise

Chilean dolphin

Chilean dolphin

Clymene dolphin

Clymene dolphin

Commerson's dolphin

Commerson’s dolphin

The New Zealand dolphin is the smallest dolphin in the world at just 1.3m long.

New Zealand dolphin
Blue whale

By comparison, the blue whale can grow to over 30 metres, the largest creature ever to have lived.

Sperm whales have the largest brain and make the loudest sound of any whale.

Sperm whale
Gray whale

The longest migration is undertaken by gray whales across the Pacific Ocean.

Amazing facts about whales and dolphins

Dive deeper into the world of whales and dolphins and learn more about their lives.


Facts about whales

Amazing facts about whales, the largest mammals to live on Earth.

Conran & Castillo 2_0715_Charlie Phillips

Facts about dolphins

From the orca to the tiny vaquita, learn more about these creatures.

Adopt an orca Fife

Record breakers

Whales and dolphins hold some incredible records.

Breaching North Atlantic right whale

Brain power

Just how intelligent are whales and dolphins?

Please help us save whales and dolphins

By adopting a whale or dolphin, by making a donation, or by fundraising for WDC, you can help us provide a safe future for these amazing creatures.

Bottlenose dolphin at surface


Adopt a dolphin and help us protect these amazing creatures.

Humpback whale


Your gifts help us take action for whales and dolphins.

Orca spyhop


Run, bake, walk, cycle… what could you do for whales and dolphins?