Squirrel is simple, beautiful and cute:

1 Step 1: First, draw a semicircle as the outline of the little squirrel's head, and draw two circles on both sides as his face.

Step 2: Draw two triangles for his standing legs and bulging body parts as his arms. ?

Step 3: Draw a drop-shaped melon seed in your hand, and color the painted squirrel with your favorite color. The beautiful squirrel stick figure will be drawn.

Squirrel, belonging to the Rodent Squirrel Family, refers to a large class of rodents with fluffy long hair on their tails. There are about 58 genera and 285 species, which are distributed in all continents except Antarctica (introduced species in Oceania).

Contrary to most people's impression, squirrels that live in trees, have big furry tails and chew with pine cones are actually just a small branch of the family Squirrelidae. From the snow-capped mountains over 6 meters above sea level to the tropical islands in the Pacific Ocean.

From the Western Hemisphere to the Eastern Hemisphere, squirrels are active in various terrestrial habitats, and some of them play an extremely important role in the ecosystem, except in areas near the polar regions or the driest deserts where the climate is extremely harsh and the vegetation is extremely simple or even absent.

The earliest known fossils of squirrel species come from Eocene strata. It was a long time from 65 million to 35 million years ago. At that time, dinosaurs had just died out, mammals had not yet gained control over land, the Qinghai-Tibet Plateau had not yet become land, Europe and North America were still connected by land, and South America was a huge island.

The most primitive squirrel lived in North America, and its shape was similar to that of the flying squirrel today. A series of fossils of squirrel species have also been found in the late Eocene strata of North America, which is different from any kind of squirrel.

The extremely rich fossil squirrel species in North America show that the Squirrelidae originated in Eocene North America, and in the long years after that, it spread to all continents except Oceania, and in the process, it evolved species with different shapes and adapted to various environments.

Among the existing species of the suborder Rodentiae Squirrel, Dormouse family mainly distributed in Eurasia and castoridae Mountain distributed in North America are closely related to Squirrel family. Squirrel family is the most well-known member of squirrel family, and it is also the most widely distributed and diverse group.