主题：【原创】趣谈生物世界（一）：蚂蚁 -- 铁手

Fire ants live in large colonies and build mounds generally in open areas such as pastures, lawns and cultivated fields. Over 100 mounds have been observed per acre in many southern fields and pastures.

Fire ants stings almost always produce small blisters or pustules that may itch for several days。