News tagged with extinction

Extinctions reduces speciation

The same factors that increase the risk of species extinctions also reduce the chance that new species are formed. This is concluded by two biologists at Umeå University. Their findings are published in the April issue of ...

dateApr 04, 2014 in Evolution
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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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