Scientists from the University of Southern California proved that primates sailed across the Atlantic Ocean. To do this, they studied the remains of the teeth of Ucayalipithecus monkeys.
This discovery helped scientists date the migration of monkeys from Africa – it occurred about 34 million years ago. It was then that a significant drop in sea level made this trip safer.
Four fossilized teeth of monkeys found deep in the Amazon rainforest are evidence that more than one group of ancient primates sailed across the Atlantic Ocean from Africa to Peru.
They suggest that monkeys traveled in groups. The teeth found belong to a recently discovered species belonging to an extinct family of African primates, known as parasiticides.
It is believed that the monkeys traveled 1.5 thousand km. on floating rafts with vegetation that came off the coastline during a storm. According to scientists, their journey could take place on the border of the Eocene and Oligocene.