Andy Rouse / Indian Flying Fox , (Pteropus giganteus), roosting, India

Anup Shah / Olive baboon (Papio anubis) male, taken with remote camera. Masai Mara National Reserve, Kenya.

Anup Shah / Vervet monkey (Cercopithecus aethiops) male approaching with curiosity - remote camera. Masai Mara National Reserve, Kenya..

David Perpinan / Necrosis / tissue dying in hemipenis of captive garter snake (Thamnophis sirtalis) small repro only

David Perpinan / Phallus/penile prolapse in a captive Yellow bellied slider (Trachemys scripta). Small repro only

Shane Gross / Nurse sharks (Ginglymostoma cirratum) ready to mate. Showing male claspers, which are used to channel semen into the female during mating, Eleuthera, Bahamas.

Shane Gross / Nurse sharks (Ginglymostoma cirratum) ready to mate. Showing male claspers, which are used to channel semen into the female during mating, Eleuthera, Bahamas.

Franco Banfi / Zebu bull, Bonito, Mato Grosso do Sul, Brazil

Staffan Widstrand / Wild Wonders of China / Portrait of a male Golden snub-nosed monkey (Rhinopithecus roxellana) Foping Nature Reserve, Shaanxi, China. Endangered species

MYN / Lily Kumpe / Balloon-winged katydid (Tympanophora diminuta) female, William Bay National Park, Western Australia. Meetyourneighbours.net project.

MYN / Lily Kumpe / Giant ichneumon wasp (Megarhyssa) female with very long ovipositor, Dugana Khad, Tuv Province, Mongolia. Meetyourneighbours.net project.

Daniel Heuclin / Potto (Perodicticus potto) male in tree, Togo. Captive.