Purchased a regal jumping spider from Ken the Bug Guy. She ended up having 3 fertile egg sacs, which she tended very well and which each resulted in around 100 healthy slings. Observations: mother hesitant to leave the sac, had to place food (she ADORES super worms, even though they are bigger than she is) in or very near her nest. Also egg sac needs to be sprayed a couple times a week. You can see the babies come to the wet webbing to drink. After the slings emerge, while there is plenty of cannibalism, they are also seen sharing fruit fly meals at times and sharing nests. In addition, they are very opportunistic about nests, preferring to steal one from a sibling than do the work of spinning their own. Growth rates vary a great deal as the more cannibalistic get much more to eat and can be up to 4 times the size of some siblings.