Twins! Microsatellite analysis of two embryos within one egg case in oviparous elasmobranchs.
Elasmobranchs display various reproductive modes, which have been key to their evolutionary success.In recent decades there has been a rise in the number of reported cases of foetal abnormalities including fertilised, double-embryos held within one egg capsule, hereafter referred to as twins.Previously, the occurrences of twin egg stoneraven d2 cas