North America is the third largest continent in the world. It is located in the Northern Hemisphere. The north of the continent is within the Arctic Circle and the Tropic of Cancer passes through ...
Kunhardtia rhodantha is in the family Rapateaceae, which is a family almost endemic to the Americas. This material relates to a paper that appeared in the 22 Dec. 2017, issue of Science, published ...
But this great migration was overwhelmingly one-sided: North American animals moved southward, while very few South Americans migrated north. (CN) — The Americas weren’t always attached. Millions of ...