Born as tadpole-like swimmers, these marine creatures use their tiny brains to find a home. But once they attach to a surface, their need to move—or think—disappears. So they digest their own brain and nervous system to conserve energy, transforming into passive filter feeders for the rest of their lives. It’s a bizarre biological shortcut that perfectly captures nature’s harsh logic: use it or lose it. #WeirdNature #SeaSquirtFacts #BrainGone 🌊 Follow Project Nightfall for more strange science