Many mammals and birds are remarkable athletes; mice work hard to dig burrows for protection and sparrows fight gravity with each flap of their wings. In order to have the energy to sustain vigorous exercise, the body's tissues ...
Paleontology & Fossils
Dec 22, 2016
0
430
(Phys.org)—A team of researchers from the U.K. and the U.S. has mapped the biggest dinosaur tree yet, and in so doing, has found that the creatures may have evolved 20 million years earlier than most in the field have thought. ...
Ancient feeding marks from hungry insects in South American leaf fossils are shedding new light on the mass extinction that wiped out the dinosaurs.
Archaeology
Nov 7, 2016
0
38
(Phys.org)—Paleontologist and evolutionary biologist Steven Stanley of the University of Hawaii has challenged the notion that the Permian-Triassic mass extinction event 252 million years ago killed off up to 96 percent ...
Iconic dinosaur shapes were present for at least a hundred million years on our planet in animals before those dinosaurs themselves actually appeared.
Archaeology
Oct 3, 2016
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10
For more than 20 million years, the ups and downs of diversity in terrestrial large mammals were determined by primary production, i.e. net production of plant biomass. This pattern changed with the onset of the ice ages. ...
Archaeology
Sep 15, 2016
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33
Humans risk causing a mass extinction of large sea creatures on a scale never before seen because of overfishing, scientists warned this week.
Ecology
Sep 15, 2016
0
33
In the Earth's oceans these days, the bigger a species is, the more prone it is to die off. That's unheard of in the long history of mass extinctions, a new study finds.
Ecology
Sep 14, 2016
2
17
Extreme global warming caused a severe mass extinction of life on Earth 252 million years ago. It took life up to 9 million years to recover. New study finds clues in the Arctic as to why this recovery took so long.
Earth Sciences
Aug 24, 2016
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34
Scientists have shed light on why life on Earth took millions of years to recover from the greatest mass extinction of all time.
Earth Sciences
Jul 19, 2016
1
75
