Monkey travel in evolution (Introduction)

by David Turell @, Thursday, February 19, 2015, 00:57 (3565 days ago)

The relationship between African and South American monkeys appears to be established, but how did the monkeys originate in Africa and get to South America. The current theory is they crossed the ocean, but how? They would starve on drifting raft travel.-http://phys.org/news/2015-02-fossils-heart-amazon-evidence-south.html-"For millions of years, South America was an island continent. Geographically isolated from Africa as a result of plate tectonics more than 65 million years ago, this continent witnessed the evolution of many unfamiliar groups of animals and plants. From time to time, animals more familiar to us today—monkeys and rodents among others—managed to arrive to this island landmass, their remains appearing abruptly in the fossil record. Yet, the earliest phases of the evolutionary history of monkeys in South America have remained cloaked in mystery. Long thought to have managed a long transatlantic journey from Africa, evidence for this hypothesis was difficult to support without fossil data. -"A new discovery from the heart of the Peruvian Amazon now unveils a key chapter of the evolutionary saga of these animals. In a paper published February 4, 2015 in the scientific journal Nature, the discovery of three new extinct monkeys from eastern Peru hints strongly that South American monkeys have an African ancestry."

Monkey travel in evolution

by dhw, Sunday, February 22, 2015, 17:42 (3561 days ago) @ David Turell

DAVID: The relationship between African and South American monkeys appears to be established, but how did the monkeys originate in Africa and get to South America. The current theory is they crossed the ocean, but how? They would starve on drifting raft travel.
 
 http://phys.org/news/2015-02-fossils-heart-amazon-evidence-south.html
 
Is it beyond the realms of possibility that (a) fossils may one day be found that date back to when Africa and South America were one land mass, and/or (b) that the dating of continental drift is wrong? I'd find either of those explanations more convincing than a load of raft-building transoceanic monkey-explorers.

Monkey travel in evolution

by David Turell @, Sunday, February 22, 2015, 18:47 (3561 days ago) @ dhw

DAVID: The relationship between African and South American monkeys appears to be established, but how did the monkeys originate in Africa and get to South America. The current theory is they crossed the ocean, but how? They would starve on drifting raft travel.
> 
> http://phys.org/news/2015-02-fossils-heart-amazon-evidence-south.html
... 
> dhw: Is it beyond the realms of possibility that (a) fossils may one day be found that date back to when Africa and South America were one land mass, and/or (b) that the dating of continental drift is wrong? I'd find either of those explanations more convincing than a load of raft-building transoceanic monkey-explorers.-It is just another puzzle. It seem well-established that monkeys are about 30 myo. And SA and Africa split about 60 million years ago. But you never know. Think of the very recent discovery of Hobbits, the humanoids of tiny size. Quite a surprise, that!

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