While these muscles disappear later, this process is thought to have something to do with the presence of an extra muscle in people's thumbs compared to other fingers.
However, the muscles in question rarely disappear in some embryos and lead to the birth of babies with different hands.
250 MILLION YEARS NOT SEEN IN MAMMALS
Scientists say that these muscles have not been found in mammals since our ancestors evolved from lizards 250 million years ago.
Researchers believe that these hand muscles are one of the oldest remnants of human evolution.
The research was conducted by Howard University in the United States. "We lost our need for these muscles during the evolutionary process," says Rui Diogo.
Noting that this is not always an ‘advantage‘, Diogo said, imiz What we lose does not make us better or more advanced. In fact, we are losing things that can make us ‘superhuman”.
Although these muscles are no longer seen in humans, they are found in species believed to come from a common ancestor, such as monkeys. This explains why they can climb better or control an object with their feet.
There are many organs without function, but ORGAN
Humans have organs such as coccyx, appendicitis, and wisdom teeth that had previously functioned, but have not yet been completely lost due to evolution.
However, lizard muscles are said to be a more remarkable evolutionary remnant than these dysfunctional organs.
Rui Diogo, "Now the question that matters to me is: (In our body) What else have we lost? When we examine the whole body of the fetus, not only the muscles of the hands and feet, what else will we see? What makes them happen and disappear?" uses.
As a matter of fact, scientists are considering to examine the whole body of fetuses from this point.