Why do armadillos, sloths and anteaters have very poor eyesight? Detailed answer

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Why do armadillos, sloths and anteaters have very poor eyesight? Detailed answer

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Why do armadillos, sloths and anteaters have very poor eyesight?

Armadillos, sloths and anteaters are united in the superorder of edentulous. There are many observations describing the poor eyesight of these animals. For example, fighting male sloths may try to butt an opponent while being a meter away. It turned out that the gene responsible for the formation of cones in the eyes does not function properly in edentulous people, so they see the world in black and white and are very poorly oriented in bright light. Scientists have put forward a hypothesis that the edentulous descended from a common ancestor who led an underground lifestyle and lost cones due to lack of need.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

Which country is named after Christopher Columbus?

The Spanish conquerors called Colombia "a country of fabulous wealth." They first set foot on her land in 1499.

In Bogotá, the capital of present-day Colombia, there is a gold museum displaying gold items and emeralds. Now these treasures belong to an independent state, which in 1863 was named Colombia in honor of Christopher Columbus. In fact, the independence of Gran Colombia was first declared by Simon Bolivar in 1819, but the country soon became known as New Granada.

The coat of arms of the country depicts a ship with raised sails, and next to it is a cornucopia from which coffee beans are pouring. Coffee is the main wealth of the country. However, throughout the XNUMXth century, Colombia lived on the proceeds from the sale of gold. Colombia is located in the northwest of South America, where the narrow isthmus begins, connecting the two American continents. In terms of size in South America, Colombia is second only to Brazil, Argentina and Peru.

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