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Facts, figures & video

Whales and dolphins are amazing. Find out incredible facts about their lives under the sea. Which is the biggest whale? The smallest dolphin? How far do whales migrate? Which whale makes the loudest sound? Do they sleep?

A life under the sea

Blue whale underwater

Facts about whales

Find out about the lives of the largest creatures living on the planet. Learn about whale migrations, the different types of whales and who has the biggest brain.

Harbour porpoise

Facts about dolphins and porpoises

Dolphins and porpoises come in all different sizes. From the magnificent orca to the tiny vaquita, dive into their world and learn more.

Male orca

Facts about orcas

Find out some amazing facts about orcas, the largest member of the dolphin family. There incredible creatures have evolved to inhabit every ocean, from the poles to the tropics.

Sperm whale

Record-breakers

Which whale is the heaviest? Which one dives the deepest? The longest migration? Whales and dolphins hold some amazing records. Dive in and find out more and these incredible creatures.

Your favourite questions about whales and dolphins...

How many teeth do dolphins have?

How many teeth do dolphins have?

How many species of dolphins are there?

How many species of dolphins are there?

How long do dolphins live?

How long do dolphins live?

How intelligent are dolphins?

How intelligent are dolphins?

How do whales and dolphins breathe?

How do whales and dolphins breathe?

Record breakers

Longest baleen
m
belongs to a bowhead whale
Loudest sound
db
made by a sperm whale
Fastest baleen whale
kph
achieved by a fin whale
Deepest dive
m
by a Cuvier's beaked whale
The longest tooth
m
belongs to a narwhal
Longest recorded journey
km
made by a gray whale

Videos from the wild

A selection of our favourite videos from the WDC archives. You can watch more on our YouTube channel.

False killer whales

Risso’s dolphins

Spotted dolphins

Help protect whales and dolphins and their homes

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

Orca - Rob Lott

Adopt

Adopt a whale and follow the lives of these amazing creatures.

Bottlenose dolphins leaping

Donate

Your support helps us take action to protect their homes.

Humpback whale spyhop

Fundraise

Run, bake, walk, cycle… what could you do to help?