This is what safety in numbers looks like 🐟 🐟 🐟   Faced with hungry predators, thousands of fish gather into one enormous, constantly moving bait ball. The sheer numbers make it difficult for a hunter to focus on just one. Sticking together is the best defence for these fish.    Revisit 25 years of extraordinary ocean stories from Blue Planet with us. Find out where to watch the full series via the link in our bio 🔗   #BluePlanet #25Anniversary #MarineAnimals #Underwater