researchers were able to identify the hunting technique of the hippocampus, able to feed much faster than his prey. The secret lies in fish … his head.
The hippocampus is a poor swimmer. How is it, then, to catch much faster than him prey. In a study published Tuesday in the journal Nature Communications , researchers describe the technique of hunting sea horse Everything is played in the head.
hippocampus sucks its prey in less than a millisecond
The hippocampus is one of the slowest fish. Yet he manages to feed on copepods, small crustaceans “swimming at incredible speeds for their size,” says Brad Gemmell (University of Texas at Austin), lead author of the study (AFP). To achieve his prey, the hippocampus turns quickly head and sucks crustacean. A gesture made in less than a millisecond. An important advantage since the reaction time is between a copepod 2-3 milliseconds. In calm water, fish catches its prey in 90% of cases. A fine performance.
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The hippocampus, a hunter unrivaled
crustacean’s interest to swim away from the sea horse “Far” here means at least an inch since the aspiration technique can only be achieved at very short distance (a few millimeters). Another question arises: how the hippocampus does he approach to his meal without it will abscond? In an attempt to see more clearly, researchers have captured the action with a very precise system of 3D video. They observed an “area without waves” in front of and above the nostrils of the animal. In addition, the hippocampus puts his head over his prey so that no water movement did arvertisse his presence. The secret of the sea horse and is its impressive discretion. A feature worthy of the greatest hunters.
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