Thursday, May 15, 2014

Seed shrimp seed

Phosphorus in bat droppings in a cave in Queensland, Australia, is responsible for petrifying tiny crustaceans known as ostracods, or seed shrimp. Paleontologist Mike Archer of the University of New South Wales took a scanning electron microscope to one of them (IMAGE ABOVE) and was surprised at what he found inside the intact reproductive organs. He describes, "This is the oldest sperm in the world. We get used to fossil bones and teeth but we did not expect the soft tissues would also preserve for 17 million years."

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