Search results
Results From The WOW.Com Content Network
The claspers of a spotted wobbegong shark (Orectolobus maculatus) The claspers of a young spinner shark (Carcharhinus brevipinna) In biology, a clasper is a male anatomical structure found in some groups of animals, used in mating. A close up view of a chimaera clasper (Hydrolagus collie). Note the many small tooth-like projections covering the ...
The hemipenis is the intromittent organ of Squamata, [4] which is the second largest order of vertebrates with over 9,000 species distributed around the world. They differ from the intromittent organs of most other amniotes such as mammals, archosaurs and turtles that have a single genital tubercle, as squamates have the paired genitalia remaining separate. [5]
The posterior part of a male shark's pelvic fins are modified into a pair of intromittent organs called claspers, analogous to a mammalian penis, of which one is used to deliver sperm into the female. [75] Mating has rarely been observed in sharks. [76] The smaller catsharks often mate with the male curling around the female.
Male waterfowl have developed another modification; while most male birds have no external genitalia, male waterfowl (Aves: Anatidae) have a phallus (length 1.5–4.0 centimetres [0.59–1.57 in]). Most birds mate with the males balancing on top of the females and touching cloacas in a “cloacal kiss”; this makes forceful insemination very ...
The dried tip of a blue whale penis, Icelandic Phallological Museum, Reykjavík, Iceland The blue whale penis is the largest in the animal kingdom. It is commonly cited as having an average penis length of 2.5 metres (8 ft 2 in) to 3 metres (9.8 ft) and a diameter of 30 centimetres (12 in) to 36 centimetres (14 in).
In oviparous fish, internal fertilisation requires the male to use some sort of intromittent organ to deliver sperm into the genital opening of the female. Examples include the oviparous sharks, such as the horn shark , and oviparous rays, such as skates .
Discover the latest breaking news in the U.S. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more.
Depiction of shark anatomy including eggs, pups, and the liver. Sharks' reproductive organs serve to reproduce sexually where the male delivers sperm to the female using claspers that insert into the female's oviduct. This then allows the female to give birth to live young, although some do lay eggs.