A new genetic study of ancient individuals in the Americas and their contemporary descendants finds that two populations that diverged from one another 18,000 to 15,000 years ago remained apart …read more Source:: Science
Tag: the Americas
An integrated assessment of vascular plants species of the Americas
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•Botanists have compiled a comprehensive, searchable checklist of 124,993 species, 6,227 genera and 355 families of vascular plants of the Americas. This represents one third of all known vascular plants …read more Source:: Science
Americas declared free of measles
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•The Region of the Americas is the first in the world to have eliminated measles, a viral disease that can cause severe health problems, including pneumonia, blindness, brain swelling and …read more Source:: Science