Pear

Here's a fun fact about pears: Pears are one of the few fruits that don't ripen well on the tree. Unlike many other fruits that need to reach full ripeness on the tree, pears are typically harvested when they are mature but still firm. The ripening process for pears occurs best after they are picked.
To ripen pears, you can place them in a paper bag with a banana or apple. These fruits release ethylene gas, a natural ripening agent, which speeds up the ripening process of the pears. It's like having a little fruit-ripening magic happening right in your kitchen!