Reef fish arrived in two waves
Davis CA (SPX) Apr 15, 2014 - 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. Reef fish represent one of the largest and most diverse assemblages of vertebrates, according to Samantha Pri ... more

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