Nature’s Klein Bottle

You’ve got to hand it to the ancients. They could tie someone’s brain in a knot with the best of them. “If a tree falls in the woods and no one’s around, does it make a sound?” Epimenides Paradox: “This sentence is not true.” Zeno’s Paradox. The Immaculate Conception. Which came first, the chicken or the egg? Does Adam have a belly button?

The ancients, however, would have been grossly unprepared for the greatest puzzle of the modern world:

Seedless watermelons.

No seeds? Then how do you grow them in the first pl…ow, ow, brain, ow, hurting, ow, melting, daisy, daisy, ow, ow. Luckily, modern science provides an answer to the riddle.