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Mass extinctions led to low species diversity, dinosaur rule

2017-10-10 06:00:00| LifeSciencesWorld

[NEWS] Two of the earth's five mass extinction events - times when more than half of the world's species died - resulted in the survival of a low number of so-called “weedy” species that spread their sameness across the world as the Earth recovered from these dramatic upheavals. The findings could shed light on modern high extinction rates and how biological communities may change in the future. David J. Button, an NC State and North Carolina Museum of Natural Sci…


Category: Biotechnology and Pharmaceuticals
 

Evolution: The beneficiaries of mass extinction

2017-10-10 06:00:00| LifeSciencesWorld

[NEWS] IMAGE: The mass extinction at the end of the Permian (about 252 million years ago) was the largest in Earth history, in which 70 percent of land-living vertebrates became extinct.  Credit: Victor O. Leshyk, website: victorleshyk.com Mass extinctions were …


Category: Biotechnology and Pharmaceuticals
 

'Fake fin' discovery reveals new ichthyosaur species

2017-10-10 06:00:00| LifeSciencesWorld

[NEWS] IMAGE: This is one of the original skeletons of Protoichthyosaurus described by Dr Robert Appleby in 1979 © National Museum of Wales - Dean R. Lomax. Credit: © National Museum of Wales - Dean R. Lomax.jpg An ichthyosaur first discovered in the 1970s but th…


Category: Biotechnology and Pharmaceuticals
 

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