Xia Yuanqiu pursed his lips and said with a smile: "people often say that the survival of the fittest, cactus will interpret this very well."

Zhu Yan immediately came to interest, said with a smile: "how to say this?"

Xia Yuanqiu said: "most plants have green leaves, which absorb sunlight and produce oxygen for human survival. If green leaves want to survive, they must rely on their roots to absorb nutrients, just as human beings need to eat and sleep. Cactus is different from other plants. It grows in the extremely arid sand region. Nutrients are very precious to them. In order to adapt to the living environment of the sand region, they continue to evolve. In order to reduce the loss of water as much as possible, their leaves eventually become as small as needle tips. They only need a little water to survive in places with extreme water shortage for a long time, They can live for a long time, because they lock the water into the hard green shell, so the stem of cactus will become so thick and juicy, and the green leaves will hardly consume the water in the green shell, so that the water can be kept for a long time to meet the needs of supply and demand. "

Looking at Xia Yuanqiu, Zhu Yan suddenly feels that he doesn't really know her very well. In her mind and heart, it seems that there are many things he doesn't know. This kind of steadiness beyond age, this kind of wisdom and erudition that surprised him.

"What's the matter?" Xia Yuanqiu saw Zhu Yan staring at her, silent, asked with a smile.

Zhu Yan also smiles, suddenly reaches out his hand and touches her cheek, and says: "I really don't know what's in your little head. Is there anything in the world that you don't know?"

Xia Yuanqiu patted off his hand and said, "of course, if I meet a strong enemy, I don't know how to defend the enemy, let alone how to insert the blade in my hand into the enemy's chest."

Zhu Yan smiles and scrapes her small nose, a face of sunshine: "you ah, when will you learn this flattering Kung Fu?"

Xia Yuanqiu, with a pretty smile, leaned close to him: "I call it survival of the fittest. You are my husband. I should flatter you more, so that you can love me more."

Zhu Yan is even more happy: "you little girl, knowing that even if you don't flatter me, I will love you as well. I just pick up what I love to hear and say, OK, your husband will double your pain!" He reached out and pinched her waist, smiling vaguely.

Xia Yuanqiu is no longer a little girl who has been in charge of human affairs for the first time. There's something else she doesn't understand. Thinking of their happiness, she can't help but stir her heart and give him a flattering look.

Back to the point, Xia Yuanqiu asked, "even if you know that it's a cactus, how about it? It's not surprising that there are so many cacti in the sand

Zhu Yan shook his head: "we all the way, can you see the cactus?"

Yuan Qiu shook his head: "no, along the way, I only occasionally see cactus."

Zhu Yan said: "it turns out that this ball full of thorns is called cactus. If it grows into a palm, it's called cactus. It's a good description."

Xia Yuanqiu suddenly realized: "you mean that only where cactus grows can there be the existence of bigenlian?"

"That's right, Dabao said. As far as he knows, there is only one place where the cactus exists in the boundless sand area of Liao and Guang. And in the place where the cactus is densely distributed, there is water source, and I happened to see bigenlian in the water source."

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