"There are lions and cheetahs and leopards out there, my dear. You'd be better off staying here with me." This is how male topi antelope lie for sex. The area of Kenya where they live, Masai Mara National Reserve, is indeed filled with large predators that find antelopes to be just delicious, and so the topi have developed warning calls that they sound when it's time to scurry away or else be eaten. But, according to an American Naturaliststudy, the devious topi males have figured out how to use their calls to fake the threat of immediate danger and keep females around, according to research leader Jakob Bro-Jørgensen.