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This is Scientific Americans' 60-second science. I'm Karen Hawken.

Birds of a feather flock together, and so do bats and fishes and any little critter

hoping that getting lost in the crowd will keep them off the evening menu. But predators

got to eat, so they, in turn, have come up

with clever ways to cut through the visual clutter of a churning mass of panic prey to hone in on

their target. For hawks who forage in massive swarms of bats, the trick, it seems, is to just dive in

and grab whatever hapless flyer happens to share your trajectory.

That's according to a study in the journal, Nature Communications.

Intercepting even a single maneuvering target is a challenging task in itself.

Graham Taylor is a professor of mathematical biology at the University of Oxford.

He got to wondering how predators like

hawks and falcons managed to isolate and intercept a moving target when it's part of a flock

or a swarm, a dense aggregation that seems like it would offer optimal protection for the prey.

For one thing, it can reduce your individual risk of coming under attack in the first place,

and it might

also make it harder for a predator to catch you if it initiates an attack at all.

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