If you are wondering what is this strange yellow/orange fruit dotted with tiny horns, the answer is kiwano fruit. Now, if you're wondering how to eat kiwano, let us explain more.
Also known as African horned cucumber and horned melon, kiwano is the fruit of a plant native to Africa: the Cucumis metuliferus, of the Cucurbitaceae family (the same as the watermelon and melon).
It's an African climbing plant that is increasingly spreading among the exotic fruit consumed in western markets. This fruit was given the name "kiwano" around the '30s, when it began to be imported into Australia and New Zealand, because, once cut, had a vague resemblance to the kiwi.