Skip to content
All articles
  • All articles
  • About whales & dolphins
  • Create healthy seas
  • End captivity
  • Fundraising
  • Green Whale
  • Kids blogs
  • Prevent deaths in nets
  • Scottish Dolphin Centre
  • Stop whaling

Mindful conservation – why we need a new respect for nature

'We should look at whales and dolphins as the indigenous people of the seas -...
tins of whale meat

How Japan’s whaling industry is trying to convince people to eat whales

Japan's hunters kill hundreds of whales every year despite the fact that hardly anyone in...
Common dolphins © Christopher Swann

Did you know dolphins have personalities?

Kidzone - quick links Fun Facts Our Goals Curious kids Kids blogs Fantastic fundraisers Gallery...
Microplastics on beach

Blue whales and the menace of microplastics – how we’ll solve this problem

Our love affair with plastic began in the 1950s when it revolutionised manufacturing. But what...
A dolphin called Arnie with his shell.

Dolphins catch fish using giant shell tools

In Shark Bay, Australia, two groups of dolphins have figured out how to use tools...
Common dolphins at surface

Did you know that dolphins have unique personalities?

We all have personalities, and between the work Christmas party and your family get-together, perhaps...
Leaping harbour porpoise

The power of harbour porpoise poo

We know we need to save the whale to save the world. Now we are...
Holly. Image: Miray Campbell

Meet Holly, she’s an incredible orca leader

Let me tell you the story of an awe-inspiring orca with a fascinating family story...

Dolphins learning

Evidence is mounting rapidly for the social transmission of certain behaviours within some mammal populations. Dolphins are no exception and their ability to learn from others within their social groups may be an important factor when it comes to adapting to human induced change within their environments.

But what does ‘social transmission’ of behaviours actually mean? A great example is found in some of the bottlenose dolphins in Shark Bay, Western Australia that have learnt, through ‘social transmission’, to use sponges as tools to help extract prey. Calves learn this unique tool use behaviour from their mothers and dolphin researcher Janet Mann and her colleagues have also speculate that this behaviour seems to serves an affiliative function, where ‘spongers’ appear to be more ‘cliquish’ and prefer to associated with other ‘spongers’. This cliquish element might have an influence on how this type of novel behaviour spreads within a social group. 

Until recently the focus of research on these sponging dolphins has been on the eastern gulf of Shark Bay. But new research on dolphins living in the western gulf identified 40 individual ‘spongers’. As with the eastern gulf dolphins, the majority of spongers were female, sponging in deep channel habitats. But in the eastern gulf there was no observed difference in the number of associates between spongers and non-spongers. Spongers in the eastern gulf foraged more often that deep-water non-spongers and group sizes in deep-water habitat were typically larger, perhaps as a result of differences in prey distribution, or perhaps these larger groups are related to higher predator abundance.

Detailed research such as this, which tracks individuals and their unique behaviours is helping scientist to shine a light on some of the complex and rich social lives of other species, such as these extraordinary tool using dolphins.