Why do rabbits need a bright white tail? Detailed answer

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Why do rabbits need a bright white tail? Detailed answer

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Why do rabbits need a bright white tail?

Dirk Semmann, a professor at the University of Göttingen, developed a theory about why rabbits need a bright white tail. The predator chasing the rabbit focuses on this contrasting spot, ignoring the torso of the prey. When a rabbit makes a sharp and unpredictable turn, the predator often fails to quickly orient itself, and the chase ends in failure.

The hypothesis was confirmed by a computer game in which people were asked to "get into the skin" of a predator and press the keys corresponding to the change in the course of the rabbit running ahead. In the first variant, the players chased a solid-colored rabbit, in the second, they chased a rabbit with a white tail, in which case the number of errors increased significantly.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

Who discovered Greenland?

If there is a place on earth that you would not even think of calling green, it is Greenland! Most of Greenland is covered by an ice shell, reaching more than 3000 meters thick in some places. Only the most resilient plants and animals can survive in such a climate on the edge of the ice sheet. Winters are very cold here, and summers are short and cool. Only small patches of land are covered with grass, heather and low flowering plants. Most of the ice-free surface is barren rocks covered with mosses and lichens.

Why then was this place called Greenland? Yes, for the same reason that an entrepreneur, wishing to attract buyers, gives the name "Pleasant Hill" or the like to a place that is really completely unattractive. In 982, an Icelander named Eric Thorvaldson ended up in southwestern Greenland. This stern man, better known as Red Eric, was exiled from Iceland for three years for killing a man. Erik spent three years in exile, exploring the western lands described by Icelandic sailors.

Three years later he returned to Iceland and told people about his research. He really wanted the settlers to rush to this country, so he gave it such an attractive name - Greenland! Today, less than 55 people live in Greenland, which is very small for such a large area. Most of the population lives on ice-free areas of the island on the southwest coast. Only 3260 people live in eastern Greenland and fewer than 800 live in the north.

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