{"refrec":{"BRefID":110808,"RR":"<b>Chapman, D.D.F.; Shivji, M.S.; Louis, E.; Sommer, J.; Fletcher, H.; Prodöhl, P.A.</b> (2007). Virgin birth in a hammerhead shark. <i>Biol. Lett. 3(4)</i>: 425-427. <a href=\"http://dx.doi.org/10.1098/rsbl.2007.0189\" target=\"_blank\">http://dx.doi.org/10.1098/rsbl.2007.0189</a>","BEntID":105454,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Biol. Lett. 3(4)</i>: 425-427. <a href=\"https://dx.doi.org/10.1098/rsbl.2007.0189\" target=\"_blank\">https://dx.doi.org/10.1098/rsbl.2007.0189</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Chapman, D.D.F.; Shivji, M.S.; Louis, E.; Sommer, J.; Fletcher, H.; Prodöhl, P.A.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Chapman, D.D.F. <i>et al.</i>","Englishabstract":"Parthenogenesis has been documented in all major jawed vertebrate lineages except mammals and cartilaginous fishes (class Chondrichthyes: sharks, batoids and chimeras). Reports of captive female sharks giving birth despite being held in the extended absence of males have generally been ascribed to prior matings coupled with long-term sperm storage by the females. Here, we provide the first genetic evidence for chondrichthyan parthenogenesis, involving a hammerhead shark (<i>Sphyrna tiburo</i>). 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