Our planet is brimming with life, and the diversity of animal species on Earth is staggering. Over 2.1 million animal species have been described, but zoologists estimate that millions more have yet ...
Chickens are able to pass bird flu to humans. (GeekWire Photo / Lisa Stiffler) Avian flu, mad cow disease, hantavirus, black plague and other notorious ailments originated with animals and made the ...
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