Many species of fish and amphibians utilize mouth brooding, a tactic in which parents gather their offspring inside their mouths to shield them from approaching danger. Female swarm anglers contort this ability for a darker purpose. Female specimens grow so large that they become virtually immobile by the time they reach adulthood. As all energy is diverted toward gaining mass, she sheds her ability to produce light and lure-in prey. Instead, she allows her vibrant offspring to venture out into her small territory, attracting the attention of would-be predators. After a time, she emits a pheromone from the appendage on her snout that signals her children to come home, baiting the curious predators into her cavernous maw. In exchange for unwittingly bringing food to the table, the offspring get their share of scraps and the relative safety of their mother's mouth. The sheer quantity of her swarm ensures that enough offspring will survive to establish the next generation, even if the majority are lost in the dangerous game of bait and switch.