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Animalia >Arthropoda >Branchiopoda >CLADOCERA >DAPHNIDAE >Daphnia >

Water fleas generally reproduce asexually and we seldom observe their mating. After mating, resistant eggs with hard wall are produced. A digital camera attached to a microscope was used for the filming. The large individuals is a female and a small individual attached to the female is a male. The male is pulling up his posterior abdomen and probing female genitalia with its tip. ¡Êtranslated by Asoh¡Ë

(Data No.momo040123un02b)

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