Archerfish use precision water jets to shoot down their prey.

When it comes to freshwater hunting fish, archerfish might just be the biggest badasses of the bunch. These snipers squirt water droplets from their mouths in precisely aimed trajectories to shoot down insects and other prey from the air. Although it was well known that archerfish could aim their water jets, this study was the first to find that they can also control the hydrodynamics of the water flow itself by changing the shape of their mouth opening. Most impressively, the fish could con

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