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Blue whales 'switch on' Antarctic song

A team of Australian and New Zealand researchers has tracked scores of blue whales off Antarctica, eavesdropping as the world's largest animals began their rumbling song, which can be detected 750 kilometres (465 miles) ...

dateMar 11, 2015 in Plants & Animals
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Progeny of old parents have fewer offspring

Reproduction at old age involves risks that may impact one's own life and may impose reduced biological fitness on the offspring. Such evidence, previously obtained in humans and other taxa under laboratory conditions, has ...

dateMar 09, 2015 in Evolution
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