At 1:48 pm on November 19, the heart of giant panda Tuantuan, who had lived in Taiwan for 14 years, stopped beating, which was heartbreaking!

2004 Tuan Tuan, who was born in September, was only 18 years old when he died. Based on the average age of giant pandas of 25 years old, Tuan Tuan's age is equivalent to about 54 years old in humans.

According to news reports, Tuan Tuan’s remains will be made into specimens and his living cells will also be preserved. Moreover, Tuantuan's body will also undergo pathological anatomy, because its cause of death was brain lesions.

Experts say pathological autopsy will help to understand whether Tuantuan has hereditary diseases, so that we can pay attention to the condition of her two children Yuanbao and Yuanzai in advance.

Speaking of the giant panda, we have to mention that behind its innocent appearance, there is actually a heart of a ferocious beast. The giant pandas we see eating bamboo all day long actually ate meat in the past. They were real beasts.

In taxonomy, the giant panda belongs to the carnivorous family Ursidae, which means that it belongs to the same family as black bears, brown bears and polar bears. In the past few years, there were often reports of giant panda bites. They may remind people: I used to be an iron-eating beast!

But they are large animals? How does a panda use a digestive system originally belonging to a carnivore to digest bamboo, which accounts for 99% of its diet?

Scientists have discovered by studying the feces of giant pandas that there are some bacteria in the digestive tract of giant pandas that can help digest plant cellulose, and some of them are unique to giant pandas.

With the blessing of these special bacteria, giant pandas can use the digestive system of carnivores to well digest bamboo, which contains a large amount of plant cellulose. Moreover, when giant pandas eat bamboo, they often choose parts with higher nutritional content.

The digestive system and chewing system of giant pandas are closer to those of carnivores. However, in the past, their ancestors chose to retreat to the mountains and forests to eat plants because they could not compete with other carnivores. So the giant panda's body began to evolve in the direction of eating plants.

But they are The structure capable of eating meat has not completely degenerated, so this naive guy who only eats bamboo all day longing for meat is actually very eager for meat, so it is not surprising that giant pandas bite people.