Science has proven that human beings too evolved through various stages of development. It is believed that for half a billion years or so, our ancestors had tails.
Just like fish, they used their tails to swim through the Cambrian seas.
In the later stages of evolution, when they became primates, their tails helped them stay balanced.
They began racing from branch to branch through Eocene jungles. And, about 25 million years ago, the tails disappeared.
It was Charles Darwin who first recognised this change in our ancient anatomy. But how and why this happened still remains a mystery.
A team of scientists from New York emphasize the probable genetic mutation that may have erased human tails.
Because when the scientists made this genetic tweak in mice, the animals did not grow tails.
This goes as per a new study that was posted online last week. This anatomical change had a profound impact on the evolution of humans.
Our ancestors’ tail muscles evolved into a hammock-like mesh across the pelvis.
So, when the ancestors of humans stood up and walked on two legs a few million years ago, that muscular hammock was ready to support the weight of upright organs.
However, it is difficult to prove that this mutation was behind the disappearing ancestors’ tails.
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