Lazy Legend on Instagram: "The post features a 60-second video of two sand tiger sharks in an aquarium attempting to mate through aggressive biting, a common behavior in the species, but triggering mutual tonic immobility—a temporary paralysis state induced by stress or inversion, as documented in shark ethology studies like those in Frontiers in Marine Science (2022). Tonic immobility serves as a passive defense mechanism in sharks, potentially aiding predator avoidance or even courtship, thoug