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Parthenogenesis is a mode of asexual reproduction in which offspring are produced by females without the genetic contribution of a male. Among all the sexual vertebrates, the only examples of true parthenogenesis, in which all-female populations reproduce without the involvement of males, are found in squamate reptiles (snakes and lizards). [1]
Among vertebrates, strict parthenogenesis is only known to occur in lizards, snakes, [47] birds, [48] and sharks. [49] Fish, amphibians, and reptiles make use of various forms of gynogenesis and hybridogenesis (an incomplete form of parthenogenesis). [ 50 ]
Garter snake is the common name for small to medium-sized snakes belonging to the genus Thamnophis in the family Colubridae. They are native to North and Central America , ranging from central Canada in the north to Costa Rica in the south.
A Brazilian rainbow boa constrictor kept at a school in England gave birth to 14 babies last month, despite having no contact with another snake for nearly a decade.
Rubber boas are viviparous (give birth to live young) and can have up to 9 young per year, although litters of 1–5 are much more common. Rubber boas are less prolific than many snakes found in the US and Canada with females only reproducing on average once every four years.
Ronaldo, a 6-foot Brazilian rainbow boa constrictor kept at a school in England, was thought to be male — until the snake gave birth to 14 babies last month.
Eastern garter snakes are ovoviviparous, giving birth to live young. Many males may try to mate with one female, resulting in a "snake orgy". [citation needed] The young are 13–23 cm (5–9 in) long at birth.
Python bodies and blood are used for African traditional medicines and other belief uses as well, one in-depth study of all animals used by the Yorubas of Nigeria for traditional medicine found that the African Python is used to cure rheumatism, snake poison, appeasing witches, and accident prevention.