Scientists finally solve mystery on why humans do not have tails

Scientists have finally discovered the reason why we humans do not have tails by studying our genetic codes, CNN reported.

In the study, published in the journal of Nature, researchers have identified a genetic connection between human tail loss and a type of birth defect.

According to the study, approximately 25 million years ago, humans genetically diverged from a group called, old world monkeys, which caused us to lose our tails.

It was due to our transition to bipedalism, which is our ability to walk on two feet, that we became tailless.

Over millions of years, changes in deoxyribonucleic acid (DNA) have caused humans and animals to evolve. A type of DNA called the Alu element which for years has been labelled as "junk DNA," was found critical to the ground-breaking finding. Alu elements are capable of switching their positions triggering mutations.

Biological anthropologist Liza Shapiro, while studying the new research said that while the Study explains the how the tail loss occurred in humans and apes, it does not explain why we lost our tails.

She further added, that "the tail was lost first, and then the locomotion we associate with living apes evolved subsequently, But it does not help us understand why the tail was lost in the first place."

She further added that babies in womb are born with tail, however in the eight week, the tail gets disconnected.