Unit 4 Wildlife protection保护野生动植物晨读 · 记忆 Wildlife Protection Dinosaurs died out because of an unexpected incident
But wildlife today disappears or is in danger just because humans do harm to it
For example, tigers are hunted for fur to make carpets so that they can only live in secure reserves; grassland is destroyed without mercy so that dust storms come into being affecting distant cities
Last year, scientists saw some monkeys rubbing themselves with a certain kind of insects to protect themselves from fierce mosquitoes biting
According to the result of the inspection, they found that the insect contains a powerful drug, so local farmers were employed to catch the insects
The ending was that the insects disappeared from the whole zone
When told that it was a loss to humans, the far