By Diagram Group

ISBN-10: 0816050503

ISBN-13: 9780816050505

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Extra info for The First Humans (Life on Earth)

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What happened when early people ventured into open country? Mediterranean hut 400,000 years ago Japanese hut 500,000 years ago Russian hut 40,000 years ago THE FIRST HUMANS LIFE LONG AGO 47 ★? DID YOU KNOW? Some of the huts made by early man must have needed a lot of work. One was made out of the remains of 95 mammoths. Not all of these would have been caught by people. Some show the tooth-marks of other animals. Jaw bones were interlocked to give rigidity to the building. A small mammoth skull weighs 200 pounds (100 kg), so jaw bones would have taken some hauling.

Even in the last thousand years, Europeans’ jaws have changed slightly. Since we have eaten softer cooked foodstuff, the importance of large teeth has declined. Those people today with the largest teeth are usually from groups used to eating tougher foods raw. © DIAGRAM All these changes can be traced through hard parts preserved as fossils. Some changes leave no traces. For example, we assume that early australopithecines, like their ape cousins, were dark skinned. This seems reasonable, given their tropical origins, although some chimpanzees have light skin.

Early Homo sapiens Modern man 1 million years ago ★ ! IT’S A FACT Some changes are still in progress. Large jaws and teeth in our earliest ancestors gave way to the smaller teeth and jaws we have today. Even in the last thousand years, Europeans’ jaws have changed slightly. Since we have eaten softer cooked foodstuff, the importance of large teeth has declined. Those people today with the largest teeth are usually from groups used to eating tougher foods raw. © DIAGRAM All these changes can be traced through hard parts preserved as fossils.

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The First Humans (Life on Earth) by Diagram Group


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