@all.things.shark: Why do hammerhead sharks swim in huge schools like this? 🦈 Scientists believe it’s for protection from predators, to navigate strong currents, and to find mates. These gatherings can reach hundreds, sometimes thousands. It’s one of the ocean’s most mysterious and awe-inspiring sights. Seen off places like Cocos Island and the Galápagos — and yes, they’re all real. A rare sight most people will never witness. #HammerheadSharks #SharkSchool #CocosIsland #GalapagosSharks #RealSharkFootage #SharkSwarm #RareOceanSight #DeepSeaFootage #SharkEncounters #SharkFacts #AllThingsShark