With COVID-19 cases surging just as students are about to return from winter break, dozens of U.S. colleges are moving classes online again for at least the first week or so of the semester—and some warn it could stretch ...
Diseases, Conditions, Syndromes
Jan 1, 2022
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18
For the first few million years of human evolution, technologies changed slowly. Some three million years ago, our ancestors were making chipped stone flakes and crude choppers. Two million years ago, hand-axes. A million ...
Archaeology
Jan 1, 2022
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386
A jaguar named Jatobazinho was released into a national park in Argentina Friday as part of a program to boost the numbers of this endangered species.
Ecology
Jan 1, 2022
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489
A fast-spreading wildfire that tore through several Colorado towns—laying waste to entire neighborhoods "in the blink of an eye," according to the governor—had largely burned itself out Friday, with heavy snow expected ...
Environment
Jan 1, 2022
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88
