Does a duck always look like a duck and quack like a duck? Sixty-six million years ago, at the end of the Cretaceous Period, ...
The skull exhibits a long, pointed beak and a brain shape unique among all known birds previously discovered from the ...
Charles Darwin predicted the existence of a moth with a long tongue based on a comet orchid's nectar spurs. This was ...
The strain had previously been found only in birds and people ... the genome of the H5N1 virus that infected her, they found signs that it had begun to develop the kinds of mutations it would ...
they found signs that it had begun to develop the kinds of mutations it would need to become a more efficient human pathogen. Then, in December, a person over age 65 in Louisiana who was exposed to ...
A dairy worker in Nevada has tested positive for H5N1 bird flu, the first human case identified in the state.
Migrant birds were early, temperatures were warm, frogs and turtles were sunning themselves, and then … it stopped. Now, a couple of weeks later, signs of life are again plentiful. The grass is ...
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