What's so interesting about turtles?

Tortoise crawls slowly, its shell is hard, its head shrinks and so on. Based on these characteristics, one or two interesting things can be derived.

I have a little turtle this year, which is only the size of a bottle cap. My mother keeps it in a small fish tank.

The little turtle is very cute. Its round head is inlaid with a pair of small eyes going round and round, and its mouth is W-shaped, as if smiling at me. The little turtle also has a hard shell and never hides from any movement. Two don't flash, just put the head and limbs into the shell, carefully hide, afraid to come out again. It was fun.

I was very happy when I suddenly remembered a short science story on TV. The tortoise will not die if it falls from the sky, but it will be safe. Until now, I am still skeptical about this story. Now there is a little turtle in front of me. Can't I solve this mystery? I am very happy to think of this. I quickly lifted the little turtle high and tried to throw it down, but I hesitated when I looked at it, because it was too small, and I was afraid it would get hurt! So my high hand was put down again.

One day, as usual, I finished feeding the little turtle and scattered it on the table. I saw the little turtle climb faster and faster, and soon climbed to the edge of the table. I don't have time to catch it. Inadvertently, I fell from the corner of the table, and my heart was in my throat, only to see the little turtle turn over slowly, with its shell down, its limbs open and its little head stretched out and looking around. As if nothing had happened, it swaggered out and my hanging heart fell back. It turns out that the hard shell of the little turtle is its secret weapon!

I really appreciate the little turtle. It helped me solve the mystery and understand this scientific truth.