Grabbing a meal on the limb
by Dan Friend
Title
Grabbing a meal on the limb
Artist
Dan Friend
Medium
Photograph - Pixel Paintography
Description
In the quiet waters of the Orient, there is an unusual fish known as the Archer fish. The Archer fish is unlike any other fish in that the Archer fish finds its prey living outside the water. An insect, butterfly, spider or similar creature is the target of the Archer fish's powerful spray of water. The Archer fish will search for prey that are resting upon a branch or twig above the water. With pinpoint accuracy, the fish knocks the prey off the branch using a powerful jet of water. The prey falls to the water as the Archer fish simultaneously swims directly to the location on the surface where the prey strikes the water, wasting no time to retrieve its meal.
The feat of shooting a stream of water to knock the prey off a branch is remarkable. The fact that the Archer fish can do this time and again with pinpoint accuracy is even more remarkable. The fact that the fish can determine the exact location of incidence at which the prey will subsequently strike the water is incredibly remarkable. But most remarkable of all is that the Archer fish can accomplish this trick despite the fact that light from the prey to its eye undergoes refraction at the air-water boundary. Such refraction would cause a visual distortion, making the prey appear to be in a location where it isn't. Yet the Archer fish is hardly ever fooled
Uploaded
February 14th, 2017
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