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... temperatures that coincide with two previously documented extinction pulses near the end of the Cretaceous Period. The first extinction pulse has been tied to massive volcanic eruptions in India, the ...

Article - News Staff - Jul 7 2016 - 12:30pm - 0 attachments

... of the source and circumstances of a specific memory--and extinction memory, a process in which a conditioned response from stimuli ...

Article - News Staff - Jul 2 2016 - 4:20pm - 0 attachments

... three times faster in the 10 million years after the extinction of the dinosaurs than in the previous 80 million years, according to ... 5000 species including humans -- was constant before the extinction event but exploded after, resulting in the varied groups of mammals ...

Article - News Staff - Jul 2 2016 - 7:22am - 0 attachments

... of examples show that humans not only contribute to the extinction of species but also drive evolution, and in some cases the emergence ... species. However, considering speciation alongside extinction may well prove important in developing a better understanding of our ...

Article - News Staff - Jul 2 2016 - 7:22am - 0 attachments

... to bring a valuable heirloom wheat back from the brink of extinction.  Purple Straw is the only heirloom wheat to have been ...

Article - News Staff - Jun 21 2016 - 7:01am - 0 attachments

... asteroid hit shows species diversity before and after this extinction event, allowing researchers to estimate the severity of the event and how quickly the mammals recovered. The extinction rates were much higher than previous estimates based on more limited ...

Article - News Staff - Jun 20 2016 - 8:59am - 0 attachments

I'll be on David Livingston's the Space Show this Friday, 27th May , to talk about my new "Case for Moon" . It's main themes are: first, the Moon as our natural first destination in the solar system. Then, planetary protection and biologically ...

Article - Robert Walker - May 29 2016 - 7:38am - 0 attachments

... giraffe subspecies already are teetering on the edge of extinction." source: Penn State ...

Article - News Staff - May 18 2016 - 4:11pm - 0 attachments

... the biological faculty of the Lomonosov MSU, the threat of extinction is more than real for red knots. Now populations of all northern ... decreases, some subspecies are already on the edge of extinction. If the bird's bill is reduced to such an extent that they will not ...

Article - News Staff - May 13 2016 - 10:57am - 0 attachments

More than 500 million people live in the Middle East and North Africa, which has always been hot in summer. And it's getting hotter, says Jos Lelieveld, Director at the Max Planck Institute for Chemistry and Professor at the Cyprus Institute. The number ...

Article - News Staff - May 2 2016 - 1:46pm - 0 attachments