Papers in scientific journals
However, it should be reminded that even the earliest 56 million years ago, the African continent and the American continent were separated, so how did this monkey named Paraithecidae reach America from the vast Atlantic Ocean in Africa? Is there really a spaceship to sit on?
About macaques in America 35 million years ago.
Erik Seiffert, a professor of clinical comprehensive anatomy at Keck Medical College of the University of Southern California, is the main author of this paper. His team found an animal molar in Yuruá River, a tributary of the Amazon River in Peru. According to the unique structure of molars, paleontologists judge that they mainly feed on fruits.
Micro Ucayalipithecus perdita molars from santa rosa Fossil Field in the Amazon region of Peru.
This kind of molar fossil is very similar to Paraithecidae, an African primate at the same time. They lived at the same time as the apes. If you want to list it as the ancestor of humans and apes, it seems ok! Therefore, paleontologists judged that this animal in America should be a subspecies of simidae in Africa, and they named it "Ucayalipithecus perdita" (Kaiali Picos monkey). After recovery, this animal weighs about 350 grams, which is similar in size to some marmosets living in South America.
Emperor marmoset
If it looks like an emperor marmoset, it is really cute! This kind of animal should live in trees, and have agile jumping ability, and can live freely in the rain forest of South America!
A group of prehistoric monkeys, how did they cross the Atlantic Ocean?
Obviously, it is impossible for monkeys to evolve into wooden boats. After all, monkeys or primates have just begun at this time! Then they can never take an alien spaceship. After all, we won't discuss this nonsense! Professor Eric seifert thinks they crossed the Atlantic on a natural raft!
the Atlantic
35 million years ago, the distance between Africa and South America was not as vast as it is now (about 2800 kilometers), only about 1400 kilometers, which is half of the distance now, so the possibility of monkeys crossing the Atlantic Ocean has increased a lot!
The nearest distance between Africa and America
Of course, this is very difficult. Professor seifert said that crossing the Atlantic, even if it is only 1000 km, is still an impossible task, and no matter how hungry animals are, they can't survive the long crossing time. So Professor seifert thinks this possibility is extremely small, just like two other prehistoric immigrant species, such as monkeys in the New World and a rodent named caviomorph, it is also a mystery!
After the rainstorm, an island moved in the river.
This small-scale ecosystem, which is intertwined and grows on a smooth demonstration surface, looks like a moving island after being washed into the river by flash floods. If these plants are more tolerant to salt and alkali, they can theoretically survive in the process of crossing the Atlantic, and even some fruit trees can bear fruit, then the monkeys found in Peru may run across Africa!
At least it doesn't need to be explained by UFOs.
However, Professor seifert also thinks this possibility is extremely low. After all, this kind of structure is loose, and it is easy to be washed away by the waves! So since 50 million years ago, archaeologists have only found a few cases, which shows that the success rate is too low. However, Professor seifert also breathed a sigh of relief. At least there are scientific phenomena that can explain the possibility of crossing the Atlantic!