This is one of those off things that I read and found really interesting. I have no idea why.
Since bananas have no seeds, all banana crops are just clones of each other. In the 1950s, the world’s most popular banana, Gros Michel, was devastated by an unstoppable fungus. Now we eat bananas called Cavendish that aren’t as good but more resistant. A new strain of that fungus is now destroying the Cavendish. Soon no more bananas!