The fruit known for its spiky exterior and sweet, yellow inside is the pineapple. This tropical fruit has a distinctive rough, spiky skin that is typically greenish-brown, yellow, or golden when ripe. The sweet, juicy flesh inside is bright yellow and is enjoyed fresh, juiced, or cooked in a variety of dishes ranging from desserts to savory meals. Pineapples are rich in vitamins, particularly vitamin C, and contain bromelain, an enzyme that can aid digestion. Originating in South America, pineapples have become a popular fruit worldwide, celebrated for their unique flavor and versatility.