This little grenade-like fruit is called a pinha here in Bahia, which is not only confusing for Spanish speakers (because that's the name of a pineapple), but for Brazilians as well. In southern Brazil, the fruit is known as a fruta do conde. It has a leathery skin, and each bump includes a seed surrounded by white flesh that is the consistency of yogurt when it's ripe. Although it is a chore to eat, it is very sweet and tropical. Thus endeth the fruit lesson for today. I did do some research online for what constitutes tropical fruit. Apparently in North America, a basket of apples with an orange and a banana thrown in will count as tropical. Oh well, here's to you, grenade fruit!