Seeing the colorful chameleon hiding behind the leaves, the tourists gradually dispersed to look at other animals.

Dawu looked at the half of the chameleon exposed out of the leaves, and touched his chin, thinking, "Hey, doesn’t the chameleon change its body color with the environment? There are brown tree trunks and green leaves in this exhibition box. Why does its body behave? How did it become red and yellow? If there is still blue on the body, how did it change."

Lin Hao shook his head with some doubts, saying that he was not very clear.

There are relatively fewer science exhibition signs in the climbing hall, because there are a lot of animals here. Except for key animals like giant salamanders, there is no specific sign for every animal, that is, pictures of animals, The place of origin, a brief introduction.

Popular science exhibition boards are usually at the corners of the corridors of the exhibition halls, mainly to introduce a certain type of animal!

Lily is more eager to see the flowers during the visit, unlike the two people who have to take a look at each exhibition box, the kind of dingy looking at the more rustic lizards and turtles will not look very much, only the animals with higher looks and beautiful appearances Will carefully appreciate it for a long time.

At this time, he has already walked to the front, greeted the two softly, and pointed to a sign in front of him: "Hey, look, here is the reason why the chameleon has changed color!"

At the beginning of the exhibition, two very interesting questions were raised!

If you put a chameleon on a neon light that changes color continuously, will the chameleon change color continuously and finally die of exhaustion?

If you throw a handful of colorful skittles at a chameleon, what color will it turn into?

Dawu was shocked: "Fuck, this is a problem that people can think of? Chameleon lovers strongly condemn neon lights and rainbow candy!"

Lin Hao couldn't help but vomit: "Chameleon said, I may not be a human, but you are real dogs!"

I didn't rush to look down at the reasons, but thought about it myself.

The first question should be no. If you really want to keep changing colors and die, it is not exhausted or stupid.

Throwing skittles, is it a random color? Still changing colors?

But this idea was quickly rejected by him, because just now I saw an example of a chameleon changing color. It was obvious that the trunks and green leaves in the exhibition box turned red and yellow. This has nothing to do with the environment!

The exhibition board introduced that in the biological world, there are two sources of color formation, including pigment color and structural color!

Pigment color is the absorption and reflection of certain wavelengths of visible light by chemical substances, while structural color is the color produced by the action of physical structure, such as the rainbow on an optical disc.

In the early days, people believed that the body color change of the chameleon was caused by the external environmental stimulus, which led to changes in the distribution of pigment cell particles on the body surface, and then the body color changed. However, current research has found that many chameleons actually do not have green pigments in their bodies.

Then why can it appear green? It is because there is a layer of iris cells under the pigment cells on the surface of the chameleon. The iris cells contain nano-scale crystals arranged in a triangular grid, and this crystal is the key factor in discoloration.

When a chameleon is in a relaxed mood, the crystals in the iris cells are closely arranged to reflect blue light, and through the epidermis containing yellow pigment, the chameleon looks green.

When the mood is tense, the interval between the crystals widens, and the longer-wavelength light segment is reflected, so that the body color of the chameleon changes from yellow to red.

Therefore, the body color of the chameleon in the human eye is intertwined with the chemical color of the cytochrome on the body surface and the structural color formed by the reflection of the iris cell layer.

In general, the males in chameleons have bright and eye-catching colors, while the females are much inferior. This is because the upper iris cells of the males are more developed.

Therefore, chameleons change color mainly to express emotions and transmit signals, which is equivalent to the language of communication between them!

"so it is!"

Lin Hao suddenly realized after watching the show.

Think about the question mentioned at the beginning of the exhibition. The neon lights change color. The chameleon lying on it just stays green and indifferent?

The colorful chameleon just now, it is estimated that the tourists were nervous about seeing it, so it turned red and yellow and hid behind the leaves.

After understanding this knowledge, I looked back at the previous display box of the colorful chameleon.

The tourists dispersed and climbed out from behind the leaves again, restoring the tranquil blue-green color.

There was a strange feeling in Lin Hao's heart, just admiring its rainbow-like appearance just now, and now suddenly I can feel its mood.

It can be said to be an animal with "joy and anger"!

I can’t help but say to Dawu: “Actually, I was not particularly interested before visiting today. I thought the reptiles were cold and boring, but now my impression has changed a bit. They seem to be quite interesting! I want to have a chameleon a little bit.”

Dawu laughed and said, "Yes! Especially the environment of the pavilion is great. I think that in such a beautiful pavilion, no matter what you look at is very interesting."

Lizards, tortoises, chameleons, frogs, snakes, and various types of animals in various environments are bred together. After all, the difference in the eyes of ordinary tourists is not very big. If one type is only raised in one area, take a stroll. You will feel visual fatigue when you go shopping.

Mixed in this way, you can try to maintain a fresh visit experience.

Walking around, Lin Hao was once again attracted by the snakes in a large exhibition box.

There are rich layers of green vegetation in the exhibition box. The bottom is some bright green moss and ferns. On the wall behind, there are prickly pears climbing, and a few drops of dew drops on the leaves, as if it had just rained. A feeling of dampness rushed to his face.

As if in the exhibition box, a corner of the tropical rain forest was intercepted!

A few driftwoods are placed with a sense of style. On a horizontal tree trunk that is slightly higher than the tourists' sight, there is a tuft of green pythons entwined.

It's not so much entanglement as it is drooping. The shape is a two-layer "U" nested outwards. The head is placed in the middle of the "U", and the tail is not visible.

In the white eyes, there is a thin black line, which should be the pupil of the green tree python, which looks like it is about to break, and sleeps without moving his head.

On the neatly arranged small scales ~lightnovelpub.net~ there are some clear crystal water drops, which are as verdant as tender bamboos that have just been drenched in the rain, very beautiful!

"What a beautiful snake!"

Lin Hao was shocked again, leaning over to look at the label below.

Green tree python, native to Australia and other places, small arboreal python!

Adults generally do not exceed 1.8 meters.

A family of three passed by, and the little boy stared at the green tree python, happily saying, "Ma Ma, look, this snake is so beautiful!"

Mother looked scared and took her father's hand: "Hey, don't let me see snakes. I don't see snakes the most. It scares me to death."

Lin Hao admired it for a while, and saw the green tree python sleeping soundly, motionless, and continued to look at other animals.

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