OK, not really “news”, but I made you click, and this is the Internet, so let’s proceed:
Scientists believe the avocado, with its enormous wood-like seed, evolved to be eaten by enormous animals that lived thousands of years ago. One of these animals would chow down on some avocados and either leave partially-eaten fruit (and its seed) nearby, or the seed would pass all the way through the animal and be left behind in its waste. Since those giant beasts are no longer with us, avocados are now dependent on human intervention to spread their seeds.
The important part is that a) it was news to me, and b) it’s about avocados! The source is Why Do Strawberries Have Their Seeds On The Outside? On which you should also click because it’s about strawberries!