Gala, Braeburn, Fuji, SweeTango, SnapDragon, Golden Delicious, Cosmic Crisp… there are over 7,500 known cultivars—varieties produced by selectively breeding desirable characteristics—of the apple. How are there that many? And how do they get their unusual names? Theresa Doud explains in this TED Ed vid: Why are there so many types of apples?Follow this with the tree that grows 40 different kinds of fruit and How Does It Grow? Apples.