Rabbit belongs to the family Lagomorpha of the class Mammalia in taxonomy, and there are 9 genera and 43 categories in the world. Rabbits are burrowing animals. The domestic rabbits we are familiar with now are all domesticated from the burrowing genus. There are many colors, and some have long hair and short hair. But it doesn't matter if it's a rabbit or a hare. Rabbits all have the same characteristic that is different from other animals, that is, three flapped mouths.

Rabbit

What is the function of the rabbit's three-flap mouth? Or Why is this three-petaled mouth formed? This goes back to the primitive period, the living environment of the ancestors of Tutu. At that time, the ancestors of rabbits did not have as many edible vegetables, fruits and grains as they are now. In that era, there were no radishes and cabbage, no fragrant and delicious alfalfa and timothy. Rabbit ancestors could only survive by eating some grass roots and tree roots. And what does this have to do with the rabbit's three-petaled mouth? Could it be that it gradually degenerated and evolved after being scratched by these things? No, no, but at that time, it was necessary to eat grass, grass, roots, roots, and these things for cows with upper and lower lips. Sheep are very inconvenient, not to mention that in the era of the weak, how could rabbits come out to eat as leisurely as they are now. They need to eat as soon as possible to fill their stomachs as soon as possible. Therefore, their three-flap mouth provides the greatest degree of convenience.

If we pay attention to the observation, we will find that the rabbit is grinning its upper lip (two lips) when grazing. We can clearly see the four white front teeth of the rabbit. In fact, be careful friends. You will find that there are actually two very sharp teeth between the two adjacent incisors. Then Tutu bit the grass roots by opening his lips to reveal his front teeth, and then chewed quickly.

Many friends will be very surprised, why don't rabbits eat those tender and juicy grass tips? It's not that the ancestors of rabbits don't want to eat it, it's that they can't eat it. Tutu's size is relatively small and exquisite, which is convenient for them to hide in the wild and can easily escape when they are in danger. Because of this, their body defects forced them to choose the grass roots they could quickly find forage.

The editor thinks that the three-petaled mouth of the bunny is the cutest when eating, I wonder what everyone thinks?