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Leaf fossils show severe end-Cretaceous plant extinction in Patagonia（图）
Leaf fossils severe end-Cretaceous plant extinction Patagonia
2021/1/18
The asteroid impact 66 million years ago that ushered in a mass extinction and ended the dinosaurs also killed off many of the plants they relied on for food. Fossil leaf assemblages from Patagonia su...
Sentinels of ocean acidification survived Earth's last mass extinction（图）
Sentinels ocean acidification survived Earth last mass extinction
2020/10/10
Two groups of tiny, delicate marine organisms -- sea butterflies and sea angels -- were surprisingly resilient in the face of dramatic global climate change and Earth's most recent mass extinction eve...
Mass extinction of land and sea biodiversity 250 million years ago not simultaneous（图）
Mass extinction land sea biodiversity 250 million years ago simultaneous
2019/12/13
Some 250 million years ago, simultaneous mass extinctions of marine and terrestrial life occurred in an event known as the End-Permian. Or so scientists believed.New research led by Colby College geol...
Unless warming is slowed,emperor penguins will march toward extinction（图）
emperor penguins extinction global climate
2019/11/22
Emperor penguins are some of the most striking and charismatic animals on Earth, but an NSF-funded study by scientists at the Woods Hole Oceanographic Institution has found that a warming climate may ...
Rocks at asteroid impact site record first day of dinosaur extinction（图）
Rocks asteroid impact site record first day dinosaur extinction
2019/10/18
When the asteroid that wiped out the dinosaurs slammed into the planet, the impact set wildfires, triggered tsunamis and blasted so much sulfur into the atmosphere that it blocked the sun, which cause...
Extinction of Icelandic walrus coincides with Norse settlement（图）
Extinction Icelandic walrus Norse settlement
2019/10/18
Scientists used ancient DNA analyses and carbon-14 dating to demonstrate the past existence of a unique population of Icelandic walrus that went extinct shortly after Norse settlement some 1,100 years...
In the past 540 million years, the Earth has endured five mass extinction events, each involving processes that upended the normal cycling of carbon through the atmosphere and oceans. These globally f...
Extinction Mystery Solved? Fossil Evidence Suggests Humans Played a Role in Monkey’s Demise in Jamaica（图）
Extinction Mystery Fossil Evidence Humans Played Monkey’s Demise Jamaica
2017/9/4
Radiocarbon dating of a fossilized leg bone from a Jamaican monkey called Xenothrix mcgregori suggests it may be the one of the most recent primate species anywhere in the world to become extinct, and...
Extinction event that wiped out dinosaurs cleared way for frogs
Extinction event wiped out dinosaurs cleared way for frogs
2017/7/24
The mass extinction that obliterated three-fourths of life on Earth, including non-avian dinosaurs, set the stage for the swift rise of frogs, a new study shows.In a paper published this week...
Caribbean bat species need 8 million years to recover from recent extinction waves
Caribbean bat 8 million years recover recent extinction waves
2017/2/15
Find related stories on NSF's Environmental Research and Education and Dimensions of Biodiversityprograms.How long does it take a community of mammals to recover after a wave of species...
Ancient extinction of giant Australian bird points to humans
Ancient extinction giant Australian bird
2016/2/22
The first direct evidence that humans played a substantial role in the extinction of the huge, wondrous beasts inhabiting Australia some 50,000 years ago -- in this case a 500-pound bird -- has been d...
As anyone who has experienced turbulence knows, its onset and departure are abrupt, and how long it lasts seems to be unpredictable. Fast flowing fluids are always turbulent, but at slower speeds the ...
Shift in weaning age supports hunting-induced extinction of Siberian woolly mammoths（图）
weaning age hunting-induced extinction Siberian woolly mammoths
2015/11/12
Chemical clues about weaning age embedded in the tusks of juvenile Siberian woolly mammoths suggest that hunting, rather than climate change, was the primary cause of the elephant-like animal's extinc...
Study explores ancient ecosystem response to a “big five” mass extinction, calls for modern food web research
ancient ecosystem big five mass extinction modern food web research
2015/10/13
As the planet faces the dawn of a sixth mass extinction, scientists are searching for clues about the uncertain road ahead by exploring how ancient ecosystems collapsed and bounced back from traumatic...
The captive elephant population in Laos will be extinct in just over a century if current management practices do not change, a University of Queensland study has found.