Dolphins are usually grey and quick in the open ocean. In rivers, though, they can be different. In the Amazon, there’s a ...
The Upsweep is an unidentified sound detected by the NOAA, first recorded in August 1991. Almost siren-like, the Upsweep is ...
Research suggests that dolphins develop a lifelong vocal “name.” Here’s how they evolved this high level of social identity, once thought to be uniquely human.
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