“Twins were most often born to human ancestors. Scientists told why, January 7, 2:30 p.m. Share: Evolution has led to the fact that most primates and humans now have one cub more often (Photo: pixabay) Author: Kira Borysikhina For our ancient ancestors, the birth of twins was the norm. Recent studies by anthropologists have shown that the common ancestors of modern primates, who lived about 60 million years ago, are much”, — write on: ua.news
Evolution has led to the fact that most primates and humans are now more likely to have one cub (Photo: pixabay)
For our ancient ancestors, the birth of twins was the norm. Recent studies by anthropologists have shown that the common ancestors of modern primates, who lived about 60 million years ago, gave birth to twins much more often than we do.
Evolution has led to the fact that most primates and humans are now more likely to have one child, which is a significant advantage. Tesla Monson of Western Washington University and Jack McBride of Yale University write about it.
The fact is that one big baby, born with a big brain and head, has a better chance of survival. And, of course, caring for one child-parent is easier.
About 50 million years ago, having one child became the norm for most primates.
However, in some species, for example, monkeys and lemurs, the birth of twins is still common.
It is interesting that in the modern world and among people, the frequency of the birth of twins is increasing. Over the past 50 years, it has practically doubled in the United States thanks to advances in reproductive medicine. But the birth of twins is associated with risks, such as premature birth and the need for intensive care.
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