网友回答：
and simply because they were in the way. thousands of kinds of animals have disappeared from the earth forever. hundreds more are on the danger list today. about 170 kinds in the united states aloneare considered in danger.农民的玉米和谷物被老鼠和老鼠，约170种仅在美国就有危险，很多
温馨提醒：随时光变迁，文中所陈述观点；准确性、难免有所变动，因此文中观点仅供参考。
