A stethoscope can be made at any time. This thing can detect sounds, and more importantly, it can be used for medical purposes.

After hearing, there is the sense of smell. There are people who have excellent eyesight and hearing, and naturally there are people who have a keen sense of smell. People with a keen sense of smell can be selected to serve as guards.

When Li Mengxi exhausted all his power, he thought of [The Art of War with Animals]. How could humans be better than dogs in terms of hearing and smell?

Li Mengxi told a few people that they could equip the guards with dogs. In this way, even if a person is a hundred steps away, as long as a gust of wind blows, the dogs can hear the sound far away outside, and the enemy soldiers in the darkness will be unable to hear anything.

Escape everywhere.

Zhang Fei and Liu Bei looked at each other and smiled. Liu Bei stood up and said with a smile, "Xi'er, wait a moment, I'll be back soon."

Liu Bei got up and left. After a while, he came back with two chubby and cute puppies. One was black and the other was yellow. Especially the black one was as fat as a bear. The two puppies were very cute.

He was dishonest and cuddled up in Liu Bei's arms.

When Li Mengxi saw the puppy for the first time, his eyes lit up. Who doesn't like cute things?

He stood up and took the two dogs. Li Mengxi hugged the puppies and teased them. He liked them very much.

Liu Bei said, this is a hunting dog bought in Luoyang. It is not an ordinary breed. In addition to these two small dogs, there are many big dogs, and there are also twenty or thirty eagles of different sizes that were bought together.

Li Mengxi couldn't wait to see it.

With hounds, any sound or smell carried by the wind to the enemy will be immediately detected.

The eagle is used to catch enemy carrier pigeons.

Everyone once again talked about the art of war with animals, and all kinds of [animals], dogs and eagles were already there. Liu Bei mentioned that he wanted to buy tigers and leopards in Luoyang, but there were no live ones and he only bought a few skins.

At this time, Guan Yu interrupted and said, "Dogs can hear and smell enemies, but dogs have no ability at night.

All kinds of animals, only the night horn can enable night vision.

Maybe we can raise some night horns for night warning?”

"What's the night number?" Li Mengxi asked in confusion.

Seeing that Li Mengxi didn't know, everyone started talking to him.

When everyone mentioned that the Night Horn's head could spin in circles, Li Mengxi reacted, "Oh! It's an owl!"

Owls do have nighttime abilities, but I have only heard of falcon training and dog training, but I have never heard of anyone training owls. Furthermore, are owls intelligent enough?

Li Mengxi remained skeptical about owls.

But let’s give it a try. What if the owl really works? With an owl, you have a night vision warning device, which is a big killer.

Everyone unanimously discussed that if they had time, they would take out a few nests of night owls, that is, owls, and try to raise them. Liu Bei, Zhang Fei, Guan Yu, Jian Yong, and they all decided to hand over the owls to Li Mengxi to raise because everyone unanimously believed that raising night owls would be a warning.

This thing is so unbelievable that everyone has no confidence in themselves but they all have confidence in Li Mengxi.
Chapter completed!