News tagged with mass extinction

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Counting calories in the fossil record

Starting about 250 million years ago, at the end of the Permian period, brachiopod groups disappeared in large numbers, along with 90 percent of the planet's species. Today, only a few groups, or genera, of brachiopods remain. ...

dateMar 26, 2014 in Archaeology & Fossils
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Reef fish arrived in two waves

( —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 ...

dateApr 10, 2014 in Plants & Animals
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