The fraction of left-handed people today is about the same as it was during the Ice Age, according to data from prehistoric handprints.
They were found in caves painted during the Upper Palaeolithic period, between 30,000 and 10,000 years ago.
Left-handedness may have conferred prehistoric man advantages, such as in combat, say the researchers.
The fraction of left-handed people today is about the same as it was during the Ice Age, according to data from prehistoric handprints.
They were found in caves painted during the Upper Palaeolithic period, between 30,000 and 10,000 years ago.
Left-handedness may have conferred prehistoric man advantages, such as in combat, say the researchers.
The research is published in the February issue of the journal Biology Letters.
Evolutionary advantages
When Stone Age man produced their remarkable cave paintings they often left handprints on the walls produced by blowing pigments from one hand through a tube held by the other hand.
Source: http://news.bbc.co.uk/2/hi/science/nature/3485967.stm
[Editor: The preceding article was not written by A4M/WHN]
