Life is short, but snakes are long: Why do snakes have two penises? - snake penis

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snake penis - Hemipenis - Wikipedia


A hemipenis (plural hemipenes) is one of a pair of intromittent organs of male squamates (snakes, lizards and worm lizards). Hemipenes are usually held inverted within the body, and are everted for reproduction via erectile tissue, much like that in the human penis.They come in a variety of shapes, depending on species, with ornamentation, such as spines or hooks. Mar 19, 2014 · Hemipenes are one of the shared derived characters of squamates (snakes and lizards), distinguishing them from other reptiles (tuataras, turtles, crocodilians, and birds), all of which have either a single or no penis.In general, snake hemipenes are endowed with a groove, called the sulcus spermaticus, down which the sperm runs. Think of a canal rather than a pipe, although during mating Author: Andrew Durso.

Atretochoana eiselti is a species of caecilian originally known only from two preserved specimens discovered by Sir Graham Hales in the Brazilian rainforest, while on an expedition with Sir Brian Doll in the late 1800s, but rediscovered in 2011 by engineers working on a hydroelectric dam project in Brazil. Until 1998, it was known only from the type specimen in the Naturhistorisches Museum Clade: Gymnophiona. More than 10,000 reptile species in every shape and size scurry and slither across Earth, from garter snakes to crocodiles — and their nether regions are just as wildly varied. From spiky.