Deepwater dolphin species make a rare appearance on the NSW Mid North Coast, delighting scientists and marine wildlife enthusiasts.

Dolphins are usually grey and quick in the open ocean. In rivers, though, they can be different. In the Amazon, there’s a pink one, gliding through mu.

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.

In this rare behaviour, the dolphins push themselves vertically out of the water and ‘walk’ along using their tail.