Ross Hoddinott / Azure damselflies mating {Coenagrion puella} Cornwall, UK. Damselflies have brushes on their penises that they use to scoop rival sperm from the female's reproductive tract, thereby ensuring pate...
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Denis-Huot / Grant's zebra (Equus quagga boehmi) mating, Masai Mara Game Reserve, Kenya, October.
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Enrique Lopez-Tapia / Traditional outfit of Melanesian man, Tanna Island, Tafea Province, Vanuatu, September 2008.
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Anup Shah / African elephant (Loxodonta africana) male unsuccessfully mating with a female. Maasai Mara National Reserve, Kenya. Feb 2012.
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Anup Shah / Olive baboon (Papio anubis) male watching with curiosity. Masai Mara National Reserve, Kenya. Taken with remote wide angle camera.
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Mark Carwardine / Grey whale (Eschrichtius robustus) mating group showing penises of two males, San Ignacio Lagoon, Baja California, Mexico
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Tony Phelps / Boomslang (Dispholidus typus) male showing hemipenes, deHoop Nature reserve, Western Cape, South Africa
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Juergen Freund / Researcher Guido Westhoff showing everted hemipenis of a road kill Black-headed python (Aspidites melanocephalus) in a mobile lab in the bush. Queensland, Australia, February 2008
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Pete Oxford / Animal penises for sale at Kunming Traditional Medicine Market, Yunnan Province, China 2006
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Dr. Axel Gebauer / Dried beef testicles and penises, used in traditional Chinese medicine, Ximen market, Xining, Qinghai Province, Tibet, China
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Mark Moffett / Close up of snake shows its two penises, Tam Dao National Park, Vietnam
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Pete Oxford / Dani tribe man with penis gourd / koteka. Budaya village, Suroba, Trikora Mountains, West Papua, Indonesia. October 2020.
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Pete Oxford / Dani tribe man with penis gourd / koteka. Budaya village, Suroba, Trikora Mountains, West Papua, Indonesia. October 2020.
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Pete Oxford / Dani tribe man with penis gourd / koteka tied to cane belt, Budaya village, Suroba, Trikora Mountains, West Papua, Indonesia. March 2018.
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Pete Oxford / Dani tribe man, with penis gourd / koteka. Budaya village, Suroba, Trikora Mountains, West Papua, Indonesia. March 2018.
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Pete Oxford / Dani tribe people, woman and man with penis gourd. Budaya village, Suroba, Trikora Mountains, West Papua, Indonesia. March 2018.