How far would you go for a good meal? For some of the ocean's top predators, maintaining a decent diet requires some surprisingly long-distance dives.

The researchers studied tissue from over 120 fish. They found that 50 to 60 percent of their diet came from ocean’s twilight ...

Their pursuers include mackerel, tuna, swordfish, marlin ... Flying fish are attracted to light, like a number of sea creatures, and fishermen take advantage of this with substantial results.