sentences:  Among mantises, cannibalism by female "Pseudomantis albofimriata" improves fecundity, overall growth, and body condition.A study on the Chinese mantis found that cannibalism occurred in up to 50% of matings.Among spiders, "Dolomedes triton" females in need of additional energy and nutrients for egg development choose to consume the closest nutritional source, even if this means cannibalizing a potential mate.