Search results
Results From The WOW.Com Content Network
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]
Females also gain nutrients from sperm storage so the more a female mates with different males the more nutritional access she will obtain. [40] After copulation, some female lizard species chose the sex of their offspring based on the male's sperm. Females produce sons with sperm from larger sires, and daughters from sperm with smaller sires. [41]
Female lizards and the young are varying shades of brown. Mature females display longitudinal bands on the upper part of their bodies, extending from the head to the tail. In addition, they exhibit blue eyespots on their sides and the hind limbs. [4] C. arubensis typically grow to a length of approximately 15 centimetres (5.9 in) [5]
The desert grassland whiptail lizard (Aspidoscelis uniparens) is an all-female species of reptiles in North America. It was formerly placed in the genus Cnemidophorus. A common predator of the whiptail lizard is the leopard lizard that preys on A. uniparens by using ambush and stalk hunting tactics. [2] [3] [4] These reptiles reproduce by ...
The size of a female's clutch varies according to the season, and it will vary according to the geographical location of the female lizard. The latitude the reproducing female inhabits will change in the reproductive outcomes of the females. All the female's hatchlings will reach sexual maturity within one year of hatching. The hatchlings ...
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]
Cloaca of a red-tailed hawk. A cloaca (/ k l oʊ ˈ eɪ k ə / ⓘ kloh-AY-kə), pl.: cloacae (/ k l oʊ ˈ eɪ s i / kloh-AY-see or / k l oʊ ˈ eɪ k i / kloh-AY-kee), or vent, is the rear orifice that serves as the only opening for the digestive (), reproductive, and urinary tracts (if present) of many vertebrate animals.
The clitoris (/ ˈ k l ɪ t ər ɪ s / ⓘ or / k l ɪ ˈ t ɔːr ɪ s / ⓘ; pl.: clitorises or clitorides) is a female sex organ present in mammals, ostriches and other amniotes.. Although the clitoris exists in all mammal species, [1] [2] [3] most studies deal with the human clitoris - few detailed studies of the anatomy of the clitoris in non-humans exist. [4]