The Earth's climate has undergone some big changes, from global volcanism to planet-cooling ice ages and dramatic shifts in solar radiation. And yet life, for the last 3.7 billion years, has kept on beating.
Earth Sciences
Nov 16, 2022
0
718
A whole-genome analysis suggests that polar bear numbers waxed and waned with climate change, and that the animals may have interbred with brown bears since becoming a distinct species millions of years ago.
Evolution
Jul 23, 2012
8
0
Climate changes profoundly influenced the rise and fall of six distinct, successive waves of mammal species diversity in North America over the last 65 million years, shows a novel statistical analysis led by Brown University ...
Evolution
Dec 26, 2011
16
0
Australia's grassland earless dragon is no bigger than a pinkie when it emerges from its shell, but the little lizard faces an enormous challenge in the years ahead: avoiding extinction.
Plants & Animals
Mar 27, 2024
0
169
It is estimated that 30% of the world's terrestrial carbon stocks are found in the boreal forest, 60% of which is below ground. Organic soil horizons contain about one-third of the soil carbon. Therefore, the stability of ...
Earth Sciences
Mar 25, 2024
0
18
Invasive plants can stay dormant for decades or even centuries after they have been introduced into an environment before rapidly expanding and wreaking ecological havoc, according to a new study led by the University of ...
Plants & Animals
Mar 6, 2024
1
73
The Arctic region is experiencing climate change at a much faster rate than the rest of the world. Melting ice sheets, runoff from thawing permafrost, and other factors are rapidly changing the composition of the Arctic Ocean's ...
Ecology
Feb 13, 2024
0
69
Researchers have linked the travels of a 14,000-year-old wooly mammoth with the oldest known human settlements in Alaska, providing clues about the relationship between the iconic species and some of the earliest people to ...
Ecology
Jan 17, 2024
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76
An international team of scientists has found the first direct evidence linking seemingly random weather systems in the ocean with climate on a global scale. Led by Hussein Aluie, an associate professor in the University ...
Earth Sciences
Dec 20, 2023
7
700
A new study from researchers at UC San Diego's Scripps Institution of Oceanography and UC San Francisco estimates 152,753 excess infant deaths were attributable to living in flood-prone areas in Bangladesh over the past 30 ...
Environment
Dec 5, 2023
0
38
