Articles on Dolphins

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Bottlenose dolphins are social creatures that use whistles and clicks to communicate with each other. Brookfield Zoo Chicago's Sarasota Dolphin Research Program, taken under NMFS MMPA Scientific Research Permit

How dolphins communicate – new discoveries from a long‑term study in Sarasota, Florida

A database of sounds from a community of wild dolphins is proving to be a great resource for researchers studying dolphin communication.
Beluga whales swim in a tank at the Marineland amusement park in Niagara Falls, Ont., in June 2023. Since 2019, 19 belugas, one dolphin and one orca have died at Marineland. THE CANADIAN PRESS/Chris Young

What can whale films tell us about Marineland’s threatened belugas and dolphins?

Whether capturing them on film, containing them in amusement parks, or subjecting them to scientific experiments, our curiosity about whales and dolphins has compelled us to capture them out of the ocean.
Whales have become increasingly common in regions such as the northern coast of São Paulo, which also has heavy ship traffic. Julio Cardoso/Projeto Baleia à Vista

Marine protected areas aren’t in the right places to safeguard dolphins and whales in the South Atlantic

Despite Brazil’s recent expansions of protected areas, research shows that the favorite habitats of whales and dolphins are still threatened by human activities.
Getty Images

‘Forever chemicals’ contaminate more dolphins and whales than we thought – new research

The sex and age of an animal turn out to be stronger predictors than habitat for higher PFAS levels, suggesting they accumulate over a lifetime.

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