Goldfish - Intelligence

Intelligence

Goldfish have a memory-span of at least three months and can distinguish between different shapes, colors and sounds. Goldfish vision is among the most studied of all vision in fishes. By using positive reinforcement, goldfish can be trained to recognize and to react to light signals of different colors or to perform tricks. Fish respond to certain colors most evidently in relation to feeding. Fish learn to anticipate feedings provided they occur at around the same time every day.

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Famous quotes containing the word intelligence:

    It is not, truly speaking, the labour that is divided; but the men: divided into mere segments of men—broken into small fragments and crumbs of life, so that all the little piece of intelligence that is left in a man is not enough to make a pin, or a nail, but exhausts itself in making the point of a pin or the head of a nail.
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