Sea animal has grow-again penis
Scientists reported Wednesday on the bizarre sex life of a sea slug that discards its penis after copulation. Then grows a new one.
'Penis-head' fish discovered in Vietnam
A new species of fish with a penis on its head has been identified in the Mekong Delta in Vietnam, researchers said on Wednesday.
New species of giant lizard found in Philippines
Biologists on Wednesday reported the spectacular discovery of a species of giant lizard, a reptile as long as a full-grown man is tall, and endowed with a double penis.
Implantation of erectile prosthesis is complicated
The final step in the multidisciplinary approach of gender reassignment therapy in female-to-male transsexuals consists of the construction of a neophallus to allow the patient to void while standing and to have sexual experience ...
Researchers reveal secrets of duck sex: It's all screwed up
Female ducks have evolved an intriguing way to avoid becoming impregnated by undesirable but aggressive males endowed with large corkscrew-shaped penises: vaginas with clockwise spirals that thwart oppositely ...