Can we eat our way through an exploding sea urchin problem?

Longspined sea urchins are native to temperate waters around New South Wales. But as oceans heat up, their range has expanded more than 650km, through eastern Victoria and south to Tasmania. Their numbers are exploding in ...

Ups and downs of biodiversity after mass extinction

The climate after the largest mass extinction so far 252 million years ago was cool, later very warm and then cool again. Thanks to the cooler temperatures, the diversity of marine fauna ballooned, as paleontologists from ...

Egypt's rebounding tourism threatens Red Sea corals

In serene turquoise waters off Egypt's Red Sea coast, scuba divers ease among delicate pink jellyfish and admire coral—yet a rebounding tourism sector threatens the fragile marine ecosystem.

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