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After dinner.

Liu Wei tried to understand the cave people's views on humans outside.

He never answered Liu Wei, but raised his head and glanced at Liu Wei from time to time.

Liu Wei could feel that he was deliberately avoiding this question, so he did not continue to ask further. For the entire cave tribe, his death marked the disappearance of the tribe. The words he didn't want to say have become unimportant. As long as outsiders don't disturb him, everyone can live their own lives.

Liu Wei changed the subject, held the little black panther that was biting his arm in his arms, patted its head like a cat, and asked the cave tribesmen, "Can I take it to our camp for the night?"

The caveman shook his head at first, he was worried about the safety of his "relatives".

"Don't worry, I like wild animals very much, including the black caiman you just ate!" Liu Wei added.

The cave tribesman looked back at the crocodile meat pieces on the ground, and then understood why Liu Wei didn't accept the food when he just handed it to him?

Thought for a moment.

He stretched out his hand to touch the little black panther. He and the little black panther looked at each other for a moment, as if he was telling it something.

The little panther barked in response.

Then the cave tribesman said to Liu Wei, "I will pick it up tomorrow morning and take you to find the black panther!"

Liu Wei nodded, picked up the little black panther and called Master De, "Master De, let's go!"

Mr. De was still picking his teeth with a sharpened bamboo skewer, and all the half-cooked crocodile meat was stuffed between his teeth, which was very uncomfortable.

On the way back, the little black panther in Liu Wei's arms kept making dull noises. It was expressing its uneasiness, but it did not attack Liu Wei, indicating that it trusted Liu Wei.

When I returned to the camp and sat in front of the live broadcast mobile camera, the atmosphere in the live broadcast room was still very lively.

"Damn it, it's a scam!"

"Hahaha, Ah Wei, the brothers all thought you were killed and eaten by that primitive man!"

"Where is the primitive man? I just saw it without pants!"

"I saw it too,

shy!"

"Hahaha, sister, what do you think?"

"The girl said she didn't dare to think about it, hahaha!"

Liu Wei looked at the cheerful barrage and said with a smile: "Brothers, let me introduce you to a new friend!"

He stretched out his hand and waved to the little black panther wandering on the edge of the tent, "Come here! Little Black!"

The audience was confused.

Xiaohei?

Is it another dog?

The little black panther understood Liu Wei's gesture and walked to Liu Wei with small steps.

"Holy shit, is it Black Panther?"

"It's really a black panther!"

"So handsome!"

"This is my first time seeing a black panther. I thought black panthers were fictional, but they really do exist!"

"You have no common sense at all. Thank you for watching the live broadcast for so long. The black panther and the white tiger have the same principle. They are genetic mutations!"

"Black panthers and white tigers are slightly different!" Liu Wei looked at the barrage and said, "Half of this brother's words are right. They are both mutant species of the original species. The little black next to me is a jaguar. A mutated species, except for its body color, there is no obvious difference in its lifestyle from the jaguar.

Xiao Hei was adopted by the primitive man you mentioned, and he saved it from the mouth of the Amazon python!"

"Amazon python, hey~, I've seen the video, Gil is the big thief!"

"The green anaconda is the most awesome!"

"Titanoboa expressed dissatisfaction!"

"Bring out the prehistoric creatures and talk about it!"

It seems that there are still many snake fans in the live broadcast room.

"If nothing else goes wrong, we should encounter green anacondas during this trip to the Amazon. I will give you a detailed science introduction then!" Liu Wei changed the topic back, "Now let's talk about the black panther!"

"Following the brother's point of view just now, why do I say that the genetic variation of black panthers and white tigers is different? What we are referring to here is not the difference in species, but from the perspective of biological inheritance.

According to the analysis of known mutated species in the world, generally offspring with genetic mutations will find it difficult to adapt to the outside world. Take the familiar white tiger as an example. Its overly obvious body color makes it difficult to hide in the forest, and We all know that the hunting skills of big cats are camouflage and surprise. This hinders the performance of the white tiger in the hunting process, and it is even difficult to catch the prey. Its color gives the prey a warning in advance.

But the black panther shows a completely different state. The black fur seems to be a gift from nature. It is equivalent to an invisible field training uniform, which can better camouflage itself and thereby improve its hunting ability!

Black panthers are nocturnal animals. When night falls, except for a pair of eyes that can reflect light, the entire body seems to be submerged in the night. Coupled with the jaguar's innate superb hunting skills, it can be said that being hunted at night is The prey it targets is basically left to die! "

"Yeah! What the anchor said makes sense!"

"With this comparison, the white tiger is indeed too conspicuous!"

"But beautiful! Beautiful is enough!"

"Can you be so beautiful that you can be eaten?"

"sure!"

"Haha, woman!"

Liu Wei kindly advised: "Don't get excited, everyone, we are mainly talking about Black Panther.

The reason why the jaguar's fur turns black is actually a form of melanosis, also called melanosis, which refers to the overdevelopment of dark pigments in the skin, which causes the skin and fur to turn black. This is the exact opposite of albinism in white tigers.

In our intuitive impression, the black panther is black. In fact, it is not the case. This is because of the visual error caused by our vision in the jungle where the sunlight is blocked.

In fact, its body has the same rose-shaped markings as those of the jaguar, but these markings are darker in color. Brothers, look carefully!"

Liu Wei held the little black panther in his arms, and the camera focused on the little black panther's body, "Did you see it? The color of the young black panther's fur is darker. As it grows older, the color of its fur will gradually become lighter, so If you have ever seen a black panther in a zoo, you will know that the black panther there is not completely black, and the rosette markings are very obvious under the sunlight.

I learned from the primitive tribesman that he had seen an adult black panther in this jungle. I will take you to look for it tomorrow. If you are lucky enough to encounter it, you will be amazed. It is so beautiful! "

"expect!"

"Set the alarm clock and get up on time to watch the live broadcast!"

"I haven't slept for two days, and I will hold on for one more day for the Black Panther!"

"You guys are really awesome!"

Liu Wei looked at the barrage and smiled: "Although the live broadcast is good to watch, you must pay attention to rest. Your health is the most important thing."

"We talked about the melanization of animals. In fact, there is not only one kind of black panther in the world, but also species such as tigers, zebras, wolves, seals, etc. all have the phenomenon of melanization, which is called melanosis.

Melanosis is thought by many to be caused when an animal has too many sites and is a form of pigmentation. However, scientists have found that mutations in MC1R and ASIP genes can cause melanosis in animals, so academic circles prefer Black panthers' melanosis is inherited due to genetic mutations, rather than pigmentation in a specific environment. Their offspring will also be black under normal circumstances, just like the little panther in my arms, who has been born with it. Such a color!”

The audience was confused.

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