Age written in teeth by nuclear tests
Article Abstract:
The amount of radiocarbon present in tooth enamel as a result of nuclear bomb testing during 1955-63 is a remarkably accurate indicator of when a person was born. The enamel of individual teeth is formed at distinct, well-characterized times during childhood and it contains 0.4% carbon, allowing precise age determination.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2005
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Printing of visual route memories
Article Abstract:
Trained ants either fed or left unfed were placed individually in a start-pot midway along the wall to investigate the role of feeding state in priming visual memories for the foodward or homeward route. It is concluded that the ants' feeding state determines whether foodward or homeward memories are primed.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2005
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