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Australian researchers found our faces have got shorter over time and our jaws smaller.
More people are being born without wisdom teeth and an extra artery in their arm as a result of a human "microevolution" in recent years, a study has found.
Babies now have shorter faces, smaller jaws and extra bones in their legs and feet, a study in the Journal of Anatomy found.
Australian researchers who worked on the paper claim the human race is evolving faster than it has done at any point in the past 250 years.
Over time, human faces have got shorter, which has seen our mouths get smaller, with less room for as many teeth.
As part of natural selection and our increased ability to chew food, this has resulted in fewer people being born with wisdom teeth, Dr Teghan Lucas from Flinders University, Adelaide, said.
"A lot of people thought humans have stopped evolving. But our study shows we are still evolving - faster than at any point in the past 250 years," she added.
An artery in the forearm that supplies blood to the hand has become more prevalent in newborns since the 19th century, the study also found.