Facts, figures & multimedia

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? Just some of the questions you will find answers to along with many others.

A life under the sea

Blue whale underwater

Facts about whales

Find out about the largest creatures living in the oceans and their lives. Find out about whales which migrate from polar regions to the tropics, which are the fastest and who has the biggest brain.

spotted-dolphins-vanessa-mignon

Facts about dolphins

Dolphins and porpoises come in all sizes and some even have unusual colouration. From the magnificent orca to the tiny New Zealand dolphin and vaquita, dive into their world and learn more.

Breaching North Atlantic right whale

Record breakers

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

Amazing facts about whales and dolphins

How intelligent are dolphins?

How intelligent are dolphins?

How do whales and dolphins breathe?

How do whales and dolphins breathe?

How do dolphins sleep?

How do dolphins sleep?

How do dolphins see underwater and what is echolocation?

How do dolphins see underwater and what is echolocation?

How do dolphins give birth?

How do dolphins give birth?

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 gifts help us take action to protect their homes.

Humpback whale spyhop

Fundraise

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