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Reef fish arrived in two waves, before and after mass extinction 66 million years ago

Reef fish arrived in two waves, before and after mass extinction 66 million years ago

The world’s reefs are hotbeds of biological diversity, including over 4,500 species of fish. A new study shows that the ancestors of these fish colonized reefs in two distinct waves, before and after the mass extinction event about 66 million years ago that wiped out the dinosaurs. Researchers traced reef fish ancestry by developing a […]