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Young leopard sharks frequent very shallow, coastal waters. The leopard shark is aplacental viviparous, with the developing embryos sustained by a yolk sac until birth. In northern areas, females use bays and sloughs as nursery areas, while to the south they give birth in more open areas. [7]
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]
Parthenogenesis in sharks has been confirmed in the bonnethead [35] and zebra shark. [36] Other, usually sexual species, may occasionally reproduce parthenogenetically, and the hammerhead and blacktip sharks [37] are recent additions to the known list of facultative parthenogenetic vertebrates. A special case of parthenogenesis is gynogenesis.
Video taken by SLO County park ranger specialist Tim Faes shows more than 50 leopard sharks of various sizes swimming in shallow waters just off Pirate’s Cove on July 4, 2022.
A leopard shark named Leonie recently welcomed three lovely pups, all of which were the result of ‘virgin births.' Leopard shark's 'virgin' births stun personnel at Australian Aquarium Skip to ...
Explore this hidden habitat and learn more about leopard sharks in this amazing video! Park volunteers and biologists at California’s Cabrillo intertidal habitat recently stumbled across an ...
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 pregnancy of a stingray living in a tank without male rays has stirred a sudden interest in parthenogenesis, a scientific term that essentially means virgin birth.