One incredible ocean crossing may have made human evolution possible - The Conversation UK
Apr 29, 2021 1 min, 22 secs
At the time, around 50 million years ago, Africa was an island isolated from the rest of the world by ocean – so how did primates get there.

Instead, we’re left with a far more unlikely scenario: early primates may have rafted to Africa, floating hundreds of miles across oceans on vegetation and debris.

Plants, insects, reptiles, rodents and primates have all been found to colonise island continents in this way – including a remarkable Atlantic crossing that took monkeys from Africa to South America 35 million years ago.

The oldest true primates also occur outside Africa.

Teilhardina, related to monkeys and apes, lived 55 million years ago, throughout Asia, North America, and Europe.

Primates arrived in Africa later.

But Africa split from South America and became an island 100 million years ago, and only connected with Asia 20 million years ago.

If primates colonised Africa during the 80 million years the continent spent isolated, then they needed to cross water.

Lemurs arrived from Africa around 20 million years ago.

Since Madagascar has been an island since the time of the dinosaurs, they apparently rafted the 400 kilometre-wide Mozambique Channel.

Even more extraordinary is the existence of monkeys in South America: howlers, spider monkeys and marmosets.

They arrived 35 million years ago, again from Africa.

From South America, monkeys rafted again: to North America, then twice to the Caribbean.

But before any of this could happen, rafting events would first need to bring primates to Africa: one brought the ancestor of lemurs, another carried the ancestor of monkeys, apes, and ourselves.

Rafting explains how rodents colonised Africa, then South America.

Marsupials, evolving in North America, probably rafted to South America, then Antarctica, and finally Australia.

1. Man Arrested at Kylie Jenner's Home, Allegedly Demanded to Profess Love - TMZ
Jun 13, 2021 # entertainment 20 secs
2. Respiratory Syncytial Virus Cases Up Across the Southern U.S., CDC Warns - Self
Jun 14, 2021 # health 1 min, 11 secs
3. Victim's death marks first fatality in Austin, Texas, mass shooting - NBC News
Jun 14, 2021 # politics 20 secs
4. Central America nation-building unlikely to stem immigration tide, study finds
Jun 14, 2021 # breaking 1 min, 50 secs
5. John Dean: Trump DOJ surveillance was 'Nixon on stilts and steroids' - Business Insider
Jun 12, 2021 # politics 2 secs
6. China to launch 3 astronauts to space station tonight -
Jun 16, 2021 # science 1 min, 15 secs
7. After Inflation Earnings of Americans Have Declined in Every Month of the Biden Presidency
Jun 11, 2021 # breaking 24 secs
8. Lots of People Don't Want Kids and Are Happy About It, Survey Finds - Gizmodo
Jun 16, 2021 # science 1 min, 11 secs
9. Here are the 14 House Republicans who voted against a bill making Juneteenth a federal holiday - CNN
Jun 17, 2021 # politics 23 secs
10. Texans will be able to carry handguns in public without a license on Sept. 1 under 'constitutional carry' law - Fox News
Jun 17, 2021 # politics 1 min, 1 sec
11. Covid: Common diabetes drug may help treat lung inflammation - India TV News
Jun 13, 2021 # health 1 min, 12 secs
12. Senate unanimously passes a bill making Juneteenth a federal holiday - CNN
Jun 15, 2021 # politics 33 secs
13. Asians in U.S. share reasons they're now looking at opportunities abroad
Jun 14, 2021 # breaking 2 mins, 16 secs
14. Toshiba's No.2 shareholder calls for immediate resignation of board chair, 3 directors - Fox Business
Jun 13, 2021 # politics 16 secs
15. Common Cold Can Protect Against Infection by COVID-19 Virus - SciTechDaily
Jun 15, 2021 # health 1 min, 33 secs
16. The Latest: EU advises adding condition to AstraZeneca label - Yahoo News
Jun 11, 2021 # health 3 mins, 37 secs


Get monthly updates and free resources.


© Copyright 2021 365NEWSX - All RIGHTS RESERVED