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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]
Obligate parthenogenesis is the process in which organisms exclusively reproduce through asexual means. [39] Many species have transitioned to obligate parthenogenesis over evolutionary time. Well documented transitions to obligate parthenogenesis have been found in numerous metazoan taxa, albeit through highly diverse mechanisms.
These rodents use torpor as means to survive winter and live to reproduce in the next reproduction cycle when food sources are plentiful, separating periods of torpor from the reproduction period. The eastern long-eared bat uses torpor during winter and is able to arouse and forage during warm periods. [ 25 ]
Prokaryotes (Archaea and Bacteria) reproduce asexually through binary fission, in which the parent organism divides in two to produce two genetically identical daughter organisms. Eukaryotes (such as protists and unicellular fungi) may reproduce in a functionally similar manner by mitosis; most of these are also capable of sexual reproduction.
The ability to reproduce by parthenogenesis has been recorded in at least two other species, Sphodromantis viridis and Miomantis sp., although these species usually reproduce sexually. [ 62 ] [ 63 ] [ 64 ] In temperate climates, adults do not survive the winter and the eggs undergo a diapause , hatching in the spring.
This social parasite is native to 15 states across the U.S. and obliges other bee species to raise its offspring. However, Suckley’s cuckoo bumble bees A New Law Protects Two Beloved Species ...
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Darlingtonia californica / d ɑːr l ɪ ŋ ˈ t oʊ n i ə k æ l ɪ ˈ f ɔːr n ɪ k ə / —also called the California pitcher plant, the Oregon pitcher plant, cobra lily or cobra plant—is a species of carnivorous plant in the new world pitcher plant family, Sarraceniaceae.