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Brazilian fisherman casting net with dolphins in background

Dolphins that work with humans to catch fish have unique accent

2 October 2017

Some bottlenose dolphins cooperate with Brazilian fishers, probably for mutual benefit, and these animals don't whistle like others in their group

Penguins appear to herd fish into a disc

Packs of killer penguins herd fish into balls then pick them off

26 September 2017

Cameras strapped to African penguins reveal that the birds team up to hunt shoals of fish, suggesting they are both smart and highly cooperative

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