"Of course not, cold-blooded animals, also known as ectotherms, are basically all except mammals and birds. Most of the animals on Earth are ectotherms. ”

"Ectotherms? I've heard my grandmother say it's a snake!" My grandmother told me when she was a child that snakes are just not familiar with them, and the story of the farmer and the snake is true.

Later, I realized that the human world is not like this.

People are intrigued with each other, and they live in fear every day, what is the difference between these people and cold-blooded animals?

Alas~

"The snake you are talking about is a kind, but there are many more, such as lizards, frogs, and fish, all of which are ectothermic animals!"

"Why do they get warmer? Is it because of the environment?"

"That's right, because ectotherms don't have their own body temperature regulating mechanism, they can only rely on their own behavior to regulate the emission of body heat or absorb heat from the external environment to raise their own body temperature. When the temperature of the external environment rises, the metabolic rate of the animal increases, and the body temperature gradually rises, so they passively leave the unfavorable environment; when the temperature of the external environment decreases, the metabolic rate of the animal also decreases, and the body temperature gradually decreases. So they either move to the sun to warm up their body temperature, or burrow into the ground and burrows to hibernate. "Luo Shijing is talking about the Tao, I think she is also a big scientist.

"I said Xiao Luo, you can't study zoology as an undergraduate, do you? How do you know so much?" I said half-jokingly.

"Qin Ming, you are really a pig! These knowledge points are all junior high school biology knowledge! I see that you didn't study hard at that time!" Luo Shijing was a little angry.

"Yo yo yo, what's the use of studying well? In the end, don't you end up on a desert island with a scumbag like me?"

"You!huh...... Stinky shit Qin Ming, I just told you to understand Ang, there are very likely snakes and big frogs living in this cave, you go to the front, be careful to eat you first!" Luo Shijing said that I began to intimidate me.

"Ding!"

I just wanted to go back to Luo Shijing, and suddenly I heard the crisp sound I heard before!

And this time it's basically like it's in the ear, it's close, it's close!

"Did you hear that? is the same sound just now, the last time Wan'er and I came to hear ......."

Before I could finish this, I fell to the ground with a stumble.

I rubbed my knees and stood up, I was smiling with Luo Shijing just now, but now I really can't laugh......

I was wrestling at a fork in the road, and the front looked very spacious, and the hole was almost three meters high.

It's a shame that I fell, otherwise I would have woken up this behemoth below!

The fork in the road seemed to lead to a place, and I was not interested in exploring any further, for by the light of the fire I could clearly see a giant lizard lying in the wide!

This lizard looks a lot like an ancient beast, and because I'm not a bachelor, I can't tell what kind of thing it is, and I don't know what kind of temper this guy is.

Luo Shijing also almost screamed in fright, this big lizard is not ordinarily big, otherwise it would not have dug such a big hole in the ground, and we humans could barely pass through it with bent over!

"Brother Ming, did you break it? Why don't you move forward? Brother Ming...... Woo woo ~ woo woo ~ "

I quickly covered Tian Mengling's mouth, she really dared to shout! If we wake up this big guy, we will have diarrhea!

We were really stupid just now! Talking about physics in this cave! It's a shame that this guy slept to death, otherwise we would have gone straight to the West.

"Woo woo ~ let go of me!" Tian Mengling finally whispered out a sentence, and I let go of her with confidence.

"What else do you want, wait for it to wake up and eat us all? Hurry up and run!" Luo Shijing was so frightened that her face was distorted.

"Don't worry, it's not awake yet, you go first, I have to go and see what this crisp sound is!" "Even though I was facing this big guy, I still wanted to find out what was ringing in this cave.

"The lizard is still very alert when it sleeps, let's go, why do we want to provoke this monster when we are idle!

"No, I have to go see what's down here today!"

I'm very persistent, I'm here for that crisp sound, I can't just walk away, besides, I have the impression that lizards eat carrion, and they don't always attack people, so I have no reason to be afraid.

"Xiao Luo, Mengling, do you know what lizards mainly eat?" I asked curiously, because I wasn't very sure, I only found out about watching the animal world of CCTV back then.

"I really don't know about that...... After all, I didn't really study zoology. Luo Shijing just wanted to leave quickly, and kept tugging at my clothes and not letting go.

"I don't even know, I'm a liberal arts student, studying screenwriting. Brother Ming, let's retreat, I always feel panicked, even if the lizard doesn't eat people, but if we break into its home, it will definitely be unhappy!" Tian Mengling said and began to move his buttocks outward.

"Xiao Luo, you are obedient, you also go out!" After Tian Mengling moved two or three meters, I kissed Luo Shijing's cheek and said.

"I don't! I want to accompany you!" Luo Shijing's attitude was very resolute, "Either go together, or stay!"

I know that no matter how much persuasion there is, it is useless: "In this way, the space below is relatively small, you shine it on me with a torch above, and I will go down to take a look, so that you can be regarded as accompanying me~" I analyzed.

"That'...... Okay~ I must not wake it up, I really don't remember whether it eats people or not, I have the impression that lizards eat carrion. Luo Shijing is not very sure now.

"Don't worry, I'll just go down and take a look, nothing will happen!"

With that, I climbed the cave wall with my bare hands and slid down.

The wall of the cave was so smooth that I didn't catch it, but I didn't touch the lizard's tail when I landed, and I carefully went around the big guy's head, but I didn't find anything.

Could this crisp sound be made by a lizard?

But this is obviously impossible, many people say that lizards are mute, even if they are not mute, how can the voice of a carnivore be so crisp?

I went from the lizard's head to my ass like a grave robber, and I found nothing, and just as I was about to climb up, I vaguely noticed something shining at the lizard's tail due to the light of the fire!

I hurriedly rushed over to take a look, and wanted to move the tail of this big guy, but I didn't have the guts, I was afraid of waking it up, so I thought it was okay.

Since I couldn't move away, I lay on the ground and listened carefully to see if it was the sound of the shiny thing.

At this time, the lizard's tail actually moved......