2016-3-1 UPDATE

Elephant

An amazing sensor throughout its body

Elephants have delicate sensors on the distinguishing features on their body. On such example is the trunk. Elephants have a keen sense of smell that helps them distinguish whether something is edible or not. The tip of the trunk is also equipped with a kind of smell sensor which they use to search for salt to replenish their supply of minerals. [6’01″/Subtitles: Japanese, English]