The first vertebrates on Earth were fish, and scientists believe they first appeared around 480 million years ago. But fossil records from this time are spotty, with only small fragments identified. By 420 million years ago, ...
Evolution
Oct 25, 2018
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317
A quick look at the fossil record shows that no species lasts forever. On average, most species exist for around a million years, although some species persist for much longer. A new study published in Scientific Reports ...
Evolution
Aug 15, 2018
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108
Scientists from Rice University and Texas A&M University-Corpus Christi's Harte Research Institute for Gulf of Mexico Studies have discovered that Earth's sea level did not rise steadily but rather in sharp, punctuated bursts ...
Earth Sciences
Oct 19, 2017
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434
Coral bleaching on Australia's Great Barrier Reef is worse than first thought and the impact will accelerate unless global greenhouse gas emissions are cut, scientists said Monday.
Environment
May 29, 2017
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435
Reducing pollution and curbing overfishing won't prevent the severe bleaching that is killing coral at catastrophic rates, according to a study of Australia's Great Barrier Reef. In the end, researchers say, the only way ...
Environment
Mar 15, 2017
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425
An analysis of the Great Barrier Reef during a time prior to it becoming the modern shallow reef has found the World Heritage Listed 'wonder' almost drowned because of rapid sea-level rise from melting glaciers and polar ...
Environment
Jan 6, 2017
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33
A mass bleaching event on the Great Barrier Reef this year killed more corals than ever before, scientists said Tuesday, sounding the alarm over the delicate ecosystem.
Environment
Nov 29, 2016
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306
Coral reefs, true reservoirs of biodiversity, are seriously threatened by human activities and climate change. Consequently, their extinction has often been heralded. Now, researchers are painting a less gloomy picture: the ...
Environment
Apr 28, 2015
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39
The end of the Permian geologic time period, 252 million years ago, was marked by huge volcanic eruptions that resulted in global warming and a change in climate so severe it caused the extinction of nearly all animals on ...
Environment
Feb 26, 2014
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20
Most of the Earth's remaining fossil fuels must be left in the ground to avoid disastrous consequences for today's young people and for future generations, according to research published today.
Environment
Dec 4, 2013
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