Wildlife Do elephants never forget? Are okapis related to zebras? Are orangutans really afraid of rain? In this quiz you have to guess which answer is true or false. True or False? - Wildlife Pandas pee while doing a handstand. Okapis are related to zebras. Orangutans hold leaves over their heads when it rains. An elephant never forgets. Hippopotamus calves are sometimes born under water. Giraffes have the lowest blood pressure of all land animals. See all "True or False?" quizzes!