A bit like flying saucers with horns, but definitely from planet earth. Perfect for getting stuck in your UGG boots and making a nice little clickety click as you tap dance your way across the rocks. Makes me wonder why these seed pods evolved with this armoury, and what hide or foot they are designed to penetrate in their efforts for dispersal? No harm done to the UGGs and hopefully no harm done to those the seed is intended to attach to.