Scientists find 100 million-year-old sperm preserved in amber

Paleontologists found this bundle of “giant sperm” in the reproductive tract of an ostracod that’s been preserved for 100 million years in amber from Myanmar. From the Ludwig-Maximilians-Universität München: In fact, this is the oldest fossil in which sperm cells have been conclusively identified. Moreover, the specimen represents a previously unknown species of crustacean, which…

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Scientists find 100 million-year-old sperm preserved in amber