Fish swim together in big groups called schools! 🐠 They do this to stay safe from bigger fish that might want to eat them. When they swim together, it's harder for the big fish to catch just one!
Fish also follow each other very closely. They use their eyes and a special sense called the lateral line to feel the water move. This helps them stay together without bumping!
Fish swim in schools because it helps them survive! 🐟 When they move together, they confuse predators—big fish can't focus on just one fish in a big, fast-moving group.
They communicate using their lateral line, a special organ that senses water movement. This helps them change direction quickly without crashing into each other!
Scientists think fish also save energy by swimming in schools. The fish in front create a small current, making it easier for the ones behind to swim!
Fish swim in schools due to a mix of biology and physics! 🐟 Predator avoidance is the main reason—when hundreds of fish move as one, predators struggle to target a single individual.
Fish use their lateral line, a sensory system along their body, to detect tiny water movements. This helps them synchronize their swimming with millisecond precision!
Research shows that fish in schools also benefit from hydrodynamic efficiency. The fish behind use the swirling water currents created by the leaders, reducing their energy use by up to 20%!
Some species, like sardines, even change their school's shape based on the threat—forming tight balls when attacked or long lines when migrating.