boys in bikinis, girls on surfboards

My god, ain't science grand? I'm starting to wonder if some of these previously-undiscovered creatures that keep popping up haven't been seen before because they're recent evolutions of older designs. Not in this particular case, but some of the others. Too tired to speculate right now, but maybe after Undulation is over and I can think about anything besides choreography, carrots, and laundry, I'll do some research.