I studied biology and one thing I like about ferns is that they have these “dots” under their “leaves” that once mature drops a powder of spores that creates new ferns… Don’t ask me why I like it, I just do. I find it simple and to the point. You can simply leave a pot with earth under a fern and then you will find a baby developing there. Just like magic, and very elegant.

Not a botanist, but their tadpoles swim. Plants without this feature will relocate the sperm themselves.

e: As a result of learning this, I also learned that molluscs, arthropods, and vertebrates all evolved brains independently, and it’s actually normal for molluscs to have distributed brains rather than it being a neat quirk of a few examples. Arthropod brains are also more or less distributed depending on their specific needs.