Potoooooooo
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http://www.cbc.ca/news/technology/giant-fossil-sperm-are-the-oldest-ever-found-1.2644037
Bat poo may have preserved the world's oldest sperm, which has been found at a fossil site in Australia, say researchers.
Bat poo may have preserved the world's oldest sperm, which has been found at a fossil site in Australia, say researchers.