PhysOrg Posted August 2, 2018 Posted August 2, 2018 When the young naturalist Alfred R. Wallace left England to explore the New World in 1848, one of his key observations in the Amazon region was that large rivers were unsurpassable barriers for some species of animals, particularly primates and birds. Even more interesting, he noticed that closely related species often occupied forests on opposite sides of a river, but they were never found together. View the full article
Recommended Posts
Archived
This topic is now archived and is closed to further replies.