A new foot fossil has surprised researchers who study how walking evolved in primates. The foot is the same age as the famous 'Lucy' fossil, but the shape of its bones suggest it walked differently and could represent a newly-discovered species.
Deadline: Jul 15 2013
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SciBX: Science-Business eXchange, a joint publication from the makers
Deadline: Jun 30 2013
Reward: $1,000,000 USD
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