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A tiny crustacean fossil contains roughly 100-million-year-old giant sperm

An ostracod encased in amber preserves what may be the oldest known fossilized sperm

Ancient ostracod species mating

A fossil find dating to the Cretaceous Period reveals that when members of the ancient ostracod species Myanmarcypris hui mated, as illustrated here, males impregnated females with giant sperm.

Dinghua Yang

By Curtis Segarra

- More than 2 years ago

Ostracods look like nothing more than seeds with legs.