Sunday Times (Sri Lanka)

Common ancestor for both humans and chimps: Expert

Existing theory is wrong, says evolution expert Professor Robin Crompton

- By Libby Plummer

Humans may not have evolved from knuckle-dragging apes after all, claims a leading expert in human evolution.

The famous ‘ascent of man’ image showing humankind’s evolution may actually be the wrong way round, says Professor Robin Crompton.

Speaking at the British Science Festival in Swansea, the scientist outlined his theory that humans, apes and chimpanzee­s evolved from a common ancestor that walked upright and lived in the trees.

This suggests that it was chimps that evolved to move around on all four limbs, while humans stuck to two, turning the traditiona­l Darwinian theory on its head, reports The Independen­t

‘Chimpanzee­s and humans are both descended from something more like living humans than living chimpanzee­s – however uncomforta­ble that may be to us,’ said Professor Crompton at the science festival, reports The Independen­t.

The expert even suggested that modern humans are not very different from our ancestors and that humans could easily return to the trees ‘if we choose to go up there – and take our shoes off ’.

The radical theory is partly based on the examinatio­n of a 3.7-million-year-old fossilised skel- eton of an Australopi­thecus hominid - an early type of human.

Nicknamed ‘Little Foot’, the skeleton is the most complete Australopi­thecus specimen found so far and was discovered in South Africa in the 1990s, but not dated until last year.

It is the same species as the famous Lucy, but while Lucy was just 1.1m tall, the South African fossil is more similar in size to a modern Western woman. A recent study that claims to have solved the mystery of how Lucy died, concluded that she fell out of a tree.

Researcher­s at the University of Texas reasoned that this was because she was not used to climbing in the trees as she walked on two feet.

Dr Crompton disputes this claim, saying that there is plenty of evidence to suggest that chimpanzee­s regularly fall from trees, sometimes seriously injuring themselves.

The evolution expert was the first to suggest that Lucy walked upright, based on computer modelling.

He believes that the same modelling technique will prove that Little Foot walked in the same way, suggested that the distant human ancestor walked upright but lived in the trees.

For many humans, with our big brains and advanced technology, it is tempting to believe that our species has reached the peak of its evolutiona­ry developmen­t.

But the natural forces of evolution continue to shape humanity despite the power we have to manipulate the world around us, according to a new study.

Researcher­s have provided genetic evidence that suggests that natural selection continues to drive human evolution.

Previous research suggested that humans ceased evolving around 40,000 years ago.

However, more recent studies contradict this, showing that traits such as malaria resistance and high-altitude adaptation in humans have evolved relatively recently.

 ??  ?? The famous ‘ascent of man’ image shows modern humans evolving to walk upright from an ape that moved around on all fours
The famous ‘ascent of man’ image shows modern humans evolving to walk upright from an ape that moved around on all fours
 ??  ?? ‘Lucy’ is one of the longest-lived and best known examples of our early human ancestors (artist’s model, pictured right). On the left are 3D printouts of Lucy’s right humerus
‘Lucy’ is one of the longest-lived and best known examples of our early human ancestors (artist’s model, pictured right). On the left are 3D printouts of Lucy’s right humerus
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