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A team of Spanish researchers from the University of Valencia and Polytechnic University of Valencia have discovered a huge mask in the forest Maya Guatemalan whose age is estimated between 300 and 600 years AD. It was apparently kept in the lush vegetation that now covers the archaeological ruins of Chalice north of Guatemala.
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The ‘Ardipithecus ramidus’, a kind of homne that lived 4.4 million years ago, for which the scientists’ best specimen fossil have denomindo’ Ardi ‘, precedes the beginning of The Evolution homne of the Australopithecus afarensis’ such as the last common ancestor of humans and chimpanzees known. ‘Ardi’ female Also, before ‘Lucy’, the best preserved specimen of A. afarensis by about Millner of years. The authors sealen than Ardipithecus est anatman so full of surprises that nobody may have known no direct evidence fsiles. All information on the new homne published in a special issue of Science. Reported by researchers, the fact that genmicas similarities between modern humans and chimpancs came to light while the discovery of Australopithecus afarensis ‘Also probably influenced the tendency to think’ Lucy ‘ltimo as representing the common ancestor of humans and chimpanzees.
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A scientific team from the Universidad Complutense de Madrid (UCM) has succeeded in identifying the scope of the Middle Miocene climate change through the analysis of fossil tooth enamel. It is a virtually new line of research in our country
Illustration of some mammals at present in the reservoir. Some twenty million years ago, during the Middle Miocene, began a period of relatively high temperatures at which followed more than six million years, a period of global cooling and aridity linked to the restoration of the Antarctic polar mass. Usually science delves into the tracks left by this event through the analysis of the marine fossil record, or on the mainland, by studying the remains of organic matter or soil well preserved.
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The journal Science is today publishing a special issue on Ardipithecus ramidus, a species of hominid that lived 4.4 million years ago in the region that is now Ethiopia. The research, conducted by an international team of scientists, contains 11 studies and summaries of the common ancestor of humans and chimpanzees oldest known who lived a million years before Australopithecus afarensis, Lucy.
Although ‘Ardi’, who lived 4.4 million years ago, is not the last common ancestor of humans and chimpanzees, as scientists believe it is a hominid that lived more than six million years, but shares many features with it. The analysis of the skull, teeth, pelvis, hands, feet and other bones show that ‘Ardi’ had a number of primitive traits shared with their predecessors: Miocene primates (more than 5.3 million years). The researchers, most notably as lead authors Tim White, University of California at Berkeley (USA),
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