Extinction of world's biggest mammals tied to spread of humans
The spread of humans around the world from Africa thousands of years ago wiped out big mammals in a trend that, if it continues, could make the cow the biggest mammal on Earth in a few centuries' time, a scientific study said on Thursday.
from CBC | Technology News https://ift.tt/2qLkK2A
Extinction of world's biggest mammals tied to spread of humans
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