Jeff Rotman / Close up view of male reproductive organ 'Claspers' of Whitetip Reef Shark (Triaenodon obesus) Cocos Island, Costa Rica, Pacific Ocean.
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Ingo Arndt / Carpet Python (Morelia spilota) hemipenis, Australia
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Robert Valentic / Close up of everted hemipene (bi-lobed male reproductive organ) of Northern death adder {Acanthophis praelongus} Northern Territory, Australia