Gu Qingyuan felt that even though he was old, his ears were not bent at all, and he still walked like a tiger.
But at this moment, he began to doubt whether he was really old. Gu Qingyuan turned to look at Wu Gang who was in a daze and repeated it.
"He agreed?"
Wu Gang swallowed and nodded.
[There is too much uncertainty about this fact, and we have too little information about this creature.]
[I think we should discuss it further...]
Gu Qingyuan hurriedly sent the message. Just now, his forehead was hot. He didn't expect the other party to agree so easily. Now that he calmed down, he became entangled.
This matter is so dangerous, it is as difficult as catching a wild crocodile, no, even higher!
Because people's research on crocodiles is now very mature, and the biological weaknesses and habits are clear, but this current one is a completely unknown creature!
Everyone is blind!
You have no idea how fast it runs, how powerful its bite is, whether it hides during the day and night, where its weaknesses are, how well it defends itself, or whether it hunts in groups.
The only information I have is the short video from last night, which is not enough!
"That's enough, that's enough." Bifang took off his jacket with a smile on his face, "I beat it away last night. That's enough, isn't it?"
Gu Qingyuan was stunned.
These words are as wanton and high-spirited as the rising sun in spring.
In that natural and friendly smile, there is a kind of confidence that he has things firmly in his hands, which is enough to infect everyone.
Gu Qingyuan looked at Bi Fang on the screen, as if this young man was a tiger in the wilderness, and he could not resist wanting to lower his head to him, even if it was a living fossil that existed hundreds of millions of years ago.
He lowered his head and deleted the message he wanted to send. It changed from a dissuasion to an instruction.
【Be careful!】
Bi Fang nodded. He was confident but not arrogant, and he knew the danger of this matter.
But, this is called adventure, isn’t it?
Last night I was still thinking about how to make up a reason to go into the water, but today someone gave me a divine assist!
Moreover, the appearance of this professor also brought back many memories of Bi Fang.
Although the two had never met, the few exchanges between them still reminded Bi Fang of the old professor who had always taken him under his wing in his previous life.
He also has an incomprehensible fascination with academic research. He is strict with himself, but very tolerant of his peers.
When he came to the waterhole again, Bi Fang was not in a hurry to get into the water.
He still has many questions to answer. Even if it is an unknown creature that he has never seen before, a lot of information can sometimes be inferred from its evolutionary chain.
Bi Fang kept searching from his brain and finally asked a question.
"Professor Gu, can you tell me about the relationship between Tiktalik, coelacanth and lungfish?"
pretty!
Hearing this question, Gu Qingyuan almost burst into laughter. The other party was by no means a retired special forces soldier who was good at surviving in the wilderness!
Even many of his professional students, after understanding the special nature of Tiktalik, were unable to point out this problem in such a short period of time.
"Is it that exaggerated?" Wu Gang scratched his head, not quite understanding his teacher's excitement.
The speed of typing on the keyboard is almost as fast as the speed of his hands when he angrily yells at his teammates when playing games.
"I usually ask you to study hard, but now you don't understand anything, right? I dare say, if I come out with a test paper, you will definitely not do as well as this young man!" Gu Qingyuan hates that iron cannot be made into steel.
"How is that possible!" Wu Gang refused. The other party was very good at identifying animals and plants, but biological evolution is not simply about knowing how to identify animals and plants.
"How is it impossible? Forget asking, you can't even see the key point of this question! Didn't you find that these two creatures have one thing in common?"
"Um...are they all lobe-finned fish?" Wu Gang scratched his head, thinking of the relationship in biological evolution, and came to this conclusion.
Lobe-finned fishes are a superclass of bony fishes, most of which are extinct. This type of fish is characterized by a central axial bone in the fins.
This is evidence of biological evolution coming ashore!
"That's right! In the long history of biological evolution in the past, no matter what creatures we see now, close or far, connected or separated, there is always an invisible bridge that connects all life together!
"
"The thing that closely links all vertebrates on land and fish in water today is lobe-finned fish! The two fish he just mentioned are the only two lobe-finned fish still alive today!"
Gu Qingyuan was not only answering Wu Gang, but also typed these words on the barrage to answer the questions of water friends.
【So awesome?】
[I checked, and the only coelacanth alive now is the speartail fish!]
[Why did I find out that it appeared between 200 million and 300 million years ago, so later than that Tik? 】
"Evolutionary biology does not understand it this way. The landing of organisms is just an evolutionary trend and not inevitable. Otherwise, there would not be so many fish that are still living in the sea. The two are just proof of the evolutionary chain. Different species
Showing a landing trend is different.”
"From the perspective of going ashore, the evolution of Tiktalik is indeed superior, because it is both a fish and a quadruped! Compared with the signs of lobe-finned fish, it is direct evidence! It is the lack of biological evolution.
One ring!”
Gu Qingyuan briefly answered the netizen's questions, and then continued to answer Qi Fang's question.
"The 'fins' of this creature have primitive wrist bones and simple toes, indicating that they can bear weight and even bend like fingers."
"From this point of view, the four-legged animal that most resembles it is the crocodile, and the stomata located on the top of the head on the original fossil also show that they had lungs that functioned as well as gills! This is similar to lungfish!"
At this point, Wu Gang also roughly understood why Gu Qingyuan was so excited just now. It turned out that Bifang's question was so sharp.
Directly point out the only two surviving creatures in the evolutionary chain of creatures landing!
Damn, awesome!
Wu Gang was completely convinced this time. If the teacher hadn't occupied his seat, he would have pushed him away and rewarded the anchor with some meatballs.
"Is that why it dared to come out of the water and attack me yesterday?" Bi Fang touched his chin and understood many key points.
From the perspective of creatures coming ashore, the opponent has evolved, but not completely. The monster can move on the ground for a short time, but its tail fin prevents it from completely leaving the water environment.
That's why when Bi Fang grabbed the monster's tongue and tried to drag it away from the water, the monster struggled so fiercely that even if the tongue broke, Bi Fang had to let go.
If you encounter danger, just go ashore decisively and you'll be fine. This is very different from crocodiles.
But if you go into the water, the situation is completely reversed.
Underwater, the opponent is a predator that is far better at swimming than a crocodile!