These birds are often killed across their 14-country migration route; only about 50 breeding pairs remain.
The desert-dwelling carnivore has been named Farlowichnus rapidus because its footsteps were spaced far apart, suggesting it was a speedy runner.
pollen samples from the interglacial period about 115,000 to 130,000 years ago have now revealed a mixture of grassland and light-woodland biomes, perhaps maintained by large herbivores such as elephants that trampled or fed on smaller trees.
Glaciers in Greenland have receded twice as fast over the past two decades as they did in the 1900sfrom seven or eight meters a year to about 15 annually.
Attenborough's long-beaked echidna, named for naturalist David Attenborough, was spotted for the first time since 1961 by trail cameras in the Cyclops Mountains.
Researchers saw chimpanzees in Tai National Park climbing to higher ground to spy on neighboring rivals, mirroring a millennia-old human military strategy.
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