Daphnia pulicaria (IMAGE)

University of Oklahoma

Daphnia pulicaria

Caption

An ancient Daphnia pulicaria individual resurrected from South Center Lake (Minnesota, USA). This individual was hatched from an egg recovered from sediments that date back to circa 1418-1301 A. D. OU scientists have recently studied other members of this species to understand rapid evolution to human-caused pollution in lake ecosystems.

Credit

Dagmar Frisch

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