Tuesday, August 18, 2015

They are the bone of the oldest ‘modern hand’ in history – Herald Tribune

A group of scientists, led by Spanish experts in Africa discovered the fossil remains of the ‘modern hand’ (like ours) oldest on record, with more than 1.84 million years old.

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These remains were found on the Olduvai Gorge (Tanzania) and belong to a phalanx of the little finger of the left hand of an individual who had a height of between 1.70 and 1.80 m.

Manuel Domínguez-Rodrigo, director of the research team , told EFE that the bone belonged to a person who “used his hands to climb trees.”

also noted that hominids became bipedal around 6 million years ago, during the first 4, all are characterized by a mixed pattern . climbing trees, and were bipedal on the ground

Later this changed. Our hand evolved, enabling a variety of grips and strong enough pressure to allow the widest range of tasks. It changed thumbs and straightened the phalanges “explained

.

This feature is it was established that it happened 1.5 million years ago with the appearance of Homo Erectus , but now, with the new study, the hands of these features date back at least 1.84 million years ago.

We’re not sure what species to the individual because teeth, we lack even know it’s not even a Homo habilis Paranthropus boisei “said the expert.

According to the study, the characteristics fit” very well “with those of Homo erectus, which could coexist in Africa with the other two species although the remains are almost 400,000 years older than the current records indicate .

However, not rule out that it is a similar but unidentified creature . The site of Olduvai, according to investigators, was a place where the hominids had cases up to 350 kilos, obtained by hunting.

Therefore always doubted the Homo habilis could, as only measuring one meter. This work found an explanation: the site inhabited it a bigger and more modern-looking creature

. Source: EFE

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