Elephants in war-torn Angola may have learned how to avoid land mines, according to biologists in the area.
When the war ended in 2002, many elephants were killed by land mines as they migrated through the area.
Since that time, the elephants have learned to avoid the mine fields, and researchers have not seen any evidence of elephants being blown up or injured by land mines in three years.
Experts are not sure whether the elephants are remembering to avoid certain areas, or if they can somehow detect the land mines. Elephants move about with their trunks right above the ground, so they might be able to smell the mines.
Click here to read more about these elephants in a National Geographic article.