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Dasypeltis is a genus of snakes, also known commonly as egg-eating snakes or egg-eaters, in the subfamily Colubrinae of the family Colubridae. The genus is one of only two taxonomic groups of snakes known to have adapted to feed exclusively on eggs (the other being the genus Elachistodon ).
Nephila sp. eating a conspecific. Females exercise mate choice, rejecting unwanted and unfit males by cannibalizing them. [25] Mate choice often correlates size with fitness level; smaller males tend to display a low level of fitness; smaller males are therefore eaten more often because of their undesirable traits. [25]
Size dimorphisms are common in snakes; females tend to be larger in populations where the production of large liters is feasible. Males tend to be larger in mating systems in which male-male competition is a large factor. [33] Hydrophiid snakes, otherwise known as sea snakes, have only recently evolved from terrestrial elapids. [34]
The state also discourages residents from dumping water from household aquariums into waterways, as it can contain zebra mussel eggs. These tiny mussels reproduce rapidly and can clog drinking ...
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Between about 1990 and 2011, foxsnakes were sometimes divided into two species, with P. vulpinus as the western foxsnake, and P. gloydi as the eastern foxsnake. A 2011 paper by Crother, White, Savage, Eckstut, Graham and Gardner proposed instead that the Mississippi River be established as the species boundary between two species of foxsnakes, and that those found to its east be considered P ...
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]
Autocannibalism, also known as self-cannibalism and autosarcophagy, is the practice of eating parts of one's own body. [ 1 ] [ 2 ] Generally, only the consumption of flesh (including organ meat such as heart or liver ) by an individual of the same species is considered cannibalism . [ 3 ]