Panda is our national treasure. Why do pandas have two dark circles?

1, the panda's dark circles are mainly used to prevent direct sunlight from shining on the eyes and play a protective role. In fact, not only pandas, but also many animals have some black marks under their eyes, which are actually used to protect their eyes.

According to zoologists' research on pandas, the unique black and white fur on pandas is actually a way of self-protection, and the pandas millions of years ago were not black and white, but the black and white colors evolved with the changes of the environment.

Millions of years ago, the earth was basically a world of ice and snow in a semi-metropolis, where pandas lived. In order to escape from the enemy, the pandas were all white at that time, and the snow was the same color. Later, with the passage of time, the panda's fur slowly began to evolve into black and white.

3. Pandas live in high altitude areas with cold environment. It is not enough to keep warm by white hair. In the process of evolution, in order to ensure that chewing organs, olfactory organs, auditory organs and motor organs are not frostbitten, the coat color changes from light to dark, so as to absorb sunlight heat and reduce heat loss.

Extended data

The role of panda's dark circles

The panda's dark circles also played a warning role. For example, although they are protected by human beings in modern times, they were besieged by powerful enemies when they lived in the wild centuries ago, and at this time, dark circles will have a deterrent effect on the enemy. This black circle can make hunters unable to see what pandas really think, thus making them uncertain.

The dark circles of giant pandas are actually their protective colors, because they have small eyes, poor eyesight and no white eyes in the middle, so they are very afraid of strong light. Without the protection of dark circles, it will be very uncomfortable because of strong light stimulation. Dark circles have the function of shielding most of the strong light for them, just like we humans wear sunglasses.

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