Chapter 33 extinct

When visiting the Museum of Natural Science, in the history of species evolution, I saw two additions: "Extinction-neither die nor live, neither live nor die: the species that have ever appeared on the earth may now be extinct up to 90% Nine. In evolution, extinction and survival are almost equally important." "If every living thing on earth survived, the world must be in great chaos." It’s really hard to imagine that 99% of the species that once existed on the earth have disappeared. Looking at the illustration next to the description, the snake is wrapped around the neck of the brontosaurus, the monkey is sleeping on the ivory, and the frog is perched on the head of the dinosaur. The ... ... is really crowded. Fortunately, species will become extinct, so there is room for survival.

The same is true for species, and so is human beings. If people don’t die, we can think about the terrible situation. After returning home from get off work, we may have to have dinner with our ancestors from 10,000 years ago. We are too scared to go home and flee to the streets. .But wandering the streets is not safe, you might meet your ancestors from 5,000 or 8,000 years ago! Extinction can be unfortunate, and survival can be hard. Extinction can be good, and survival can be unfortunate.