Latest Extinction events Stories
A new scientific paper co-authored by a University of Adelaide researcher reports strong evidence that humans, not climate change, caused the demise of Australia's megafauna - giant marsupials, huge reptiles and flightless birds - at least 40,000 years ago.
Scientists have discovered that air flows in one direction as it loops through the lungs of alligators, just as it does in birds.
If Earth is headed for a mass extinction like the previous five, in which more than 75 percent of all species were wiped out, then North American mammals are one-fifth to one-half the way there.
Mammals may be nearly half way toward mass extinction.
The largest known mass extinction in Earth's history, about 252 million years ago at the end of the Permian Period, may have been caused by global warming.
Environmental selectivity during three of the â€˜Big Fiveâ€™ mass extinction events focus of two paleontologistsâ€™ latest research.
Algae, not asteroids, were the key to the end of the dinosaurs, say two Clemson University researchers.
A mysterious basin off the coast of India could be the largest, multi-ringed impact crater the world has ever seen. And if a new study is right, it may have been responsible for killing the dinosaurs off 65 million years ago.
Danish-led scientists say an analysis of rock found only in the world's oldest oceans has shed light on how large animals obtained a foothold on Earth. The team led by University of Copenhagen Professor Robert Frei said it has, for the first time, plotted the rise and fall of oxygen levels in the Earth's atmosphere that occurred during the last 3.8 billion years. By analyzing the isotopes of chromium in iron-rich sediments formed in the ancient oceans, the team found a rise in atmospheric...
Drifting across the worldâ€™s oceans are a group of unicellular marine microorganisms that are not only a crucial source of food for other marine life
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