Alleged 40,000-year-old human footprints in Mexico much, much older than thought

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A tracery of tire marks amid indentations in the volcanic rock. Note the resemblance to shoeprints, not footprints.
Alleged footprints of early Americans found in volcanic rock in Mexico are either extremely old - more than 1 million years older than other evidence of human presence in the Western Hemisphere - or not footprints at all, according to a new analysis published this week in Nature.


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All News summaries for December 01, 2005

Economists: Tough measures needed to cure economic ills

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(PhysOrg.com) -- An ailing financial industry is going to need strong medicine to pull out of a deepening credit crunch brought on by risky loans and deregulation, Purdue University economists said Monday.

Koalas calling

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With the help of mobile phone technology, UQ researchers are set to decipher the distinctive grunting noises made by male koalas during the spring mating season.

The Color of Evolution: How One Fish Became Two Fish

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(PhysOrg.com) -- Ever since Darwin discovered that species can evolve, scientists have wondered how new species form. Answering this question is the key to understanding the diversity of all of life. A group ...

New research may help to design better gene therapy vectors

11 hours ago | User rating: not rated yet
(PhysOrg.com) -- Research published by scientists from the University of Reading may offer an insight into ways of making safer and more specific gene therapy vectors. The research, published in the journal Nature Structural ...

Olive oil ingredient ups the time between meals

12 hours ago | User rating: not rated yet
A fatty acid found in abundance in olive oil and other "healthy" unsaturated fats has yet another benefit: it helps keep the body satisfied to prolong the time between meals.
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