There are some critters that are rather different at times, like egg bearers however, and even range into a different category, than the usual "propagation" methods!<quoted text>
Babies grow in the uterus
Quote from article-on certain "insects"-
"There are, however, rare examples of asexual species that reproduce by cloning. Each offspring is genetically identical to the parent, with little variation generation after generation.(Mutations do create a minor amount of change.)
If asexual reproduction survives at all, conditions must sometimes favor it, even in competition for a niche with sexually reproducing species. Some insects, like aphids, are both asexual and sexual reproducers. Though rare, those species that reproduce asexually tend to persist...."
"Asexual Reproducers". Evolution, Library. WGBH Educational Foundation. Clear Blue SkyProductions. PBS.org . 2001. 1/9/2013