This unusual fruit is covered in reddish scales, which must be peeled away to get to the flesh. Popular in the Amazon jungle, the fruit is often eaten by scraping the flesh over your bottom teeth to separate it from a large internal seed. It is an excellent source of vitamins A and C, and the pulp is also occasionally used to treat burns. When fermented, it makes a delicious, exotic wine.
The fruit is so popular in the Amazon rain forest, NPR says, that it's raised concerns that people are chopping down the trees it comes from faster than they can naturally grow.