A few thousand barracuda have created a vortex — a product of evolution that allows the fish to better protect themselves from predators. This is known as schooling and it requires coordinated body positions and synchronized movement. Originally seen on sciencechannel . . #videooftheday #animals #nature #oceanlife #sand #oceanlover #oceanview #sealife #oceanvibes #oceano #bluewater #barracuda #fish #oceanweek #ocean