Other animals use titanium for purposes other than defense.

Other animals use TI for purposes other than defense. When the sleeper cichlid feels peckish, it sinks to the lake floor and lies motionless, its splotchy coloration making it seem like a rotting carcass. If a small scavenger investigates, this undead trickster strikes. Some animals even feign death as a sexual ploy. Male nursery spiders offer gifts of silk-wrapped insects in hopes of wooing females. But those females are known to eat love-seeking males. By playing dead while the female eagerly devours her snack, these males can cautiously revive and improve their chances of successfully mating.