CNN News:非洲东部遭遇25年来最严重的沙漠蝗虫入侵

What animal would you find in the family acrididae? Aphid, marmot, sea horse or locust. In the family acrididae you'll find grasshoppers and locusts.
Imagine seeing an approaching cloud that's massive, 37 miles long and 25 miles wide and instead of water or dust it's a cloud of locusts. That's the size of just one of the swarms that's descended this year on eastern Africa. Specifically these are desert locusts. The most destructive type of locusts that eats food and that's terrible news in a region that's food insecure, meaning there are already problems with people getting enough to eat. The United Nations says this is the worst invasion of desert locusts in 25 years. What might have made it so bad was a cyclone, a major storm that hit parts of Somalia and Ethiopia last December. That brought a lot of rain to the region and that creates the best conditions for these pests to breed. The United Nations wants the world to contribute more than $75 million so pesticides can be sprayed to kill the insects.