상세정보
A BEAVER SLAPS ITS TAIL ON THE WATER TO WARN OTHER BEAVERS OF APPROACHING DANGER. A MOTHER BAT RETURNING TO THE CAVE CAN LOCATE HER BABY AMONG TWO OR THREE MILLION OTHER BATS BY USING A SPECIAL CRY. AND THE MALE HIPPOPOTAMUS MARKS HIS TERRITORY BY SPINNING HIS TAIL AND...
[NAVER 제공]