Top Around The World

Ours is truly a blue planet. Water covers most of the world's surface. Here we are the outsiders. But under the waves one group thrives. Fish are masters of the waters. And sailfish are the fastest of them all. Their speed makes them one of the ocean's most fearsome predators. Off the coast of Mexico, 30 sailfish have surrounded a ball of sardines. To catch their prey requires more than speed alone. In the tightest turns, fins maintain stability. Their sickle-shaped tail powers them forwards and that extraordinary dorsal fin helps intimidate their prey. To the naked eye, the action is too fast, slowed, their challenge becomes clear. Just picking a target is hard enough. Knocking it off balance, separates it from the shoal. This requires extraordinary skill. Not every attempt is successful. But as more sailfish join in, when one misses another takes its place. The shoal of sardines is methodically wiped out. Sailfish are top predators, very little threatens them. But for the m...