Scientists in the US and Australia have shown that age is not a barrier to hot sex, at least when it comes to one of the world's oldest species of tree. Reporting their findings in the journal Science, University of Utah researcher Irene Terry, together with Gimme Walter, Chris Moore and Craig Hull from the University of Queensland, have solved a long standing puzzle about the reproduction of cycads, primitive plants dubbed "living fossils" that date back almost 300 million years.
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