BIO 324 Lecture Notes - Lecture 13: Pit Viper, Yolk, Mabuya
Document Summary
Done to fight for mating rights and to protect its own territory. Also done in a lot of lizards. Not exchanging nutrients via the mothers blood. Hatches inside of mother and feeds off remaining egg yolk in sac. Most energy to the young is given via the yolk and is most common in rattlesnakes. Most energy to the young is via the umbilical cords and extremely rare one example is in the mabuya skink. Only really seen in rattlesnakes and king cobras. Eggs laid in constructed mud nests near streams. Eggs laid in tree hole cavities or leaf axils. Hatches as a baby frog or salamander w/ no metamorphosis. Any terrestrial salamanders are also this method. Some species have eggs carried on back (either open or in pouch) Stops producing stomach acid due to prostoglantin e2 to be able. Dendrobates will feed tadpoles with infertile ova.
