The ostracod was found frozen in a blob of tree resin or amber [File: Ye Aung Thu/ AFP]

A team of paleontologists has discovered what they believe is the world’s oldest animal sperm, frozen inside a tiny crustacean in a blob of tree resin in Myanmar 100 million years ago.    

The oldest known examples of fossilised animal sperm were previously a mere 17 million years old, according to the team of experts led by Wang He of the Chinese Academy of Science in Nanjing.

The sperm were found inside an ostracod, a kind of crustacean that has existed for 500 million years and can be found in many oceans today, researchers said in a paper published on Wednesday in the prestigious Royal Society’s

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