Books Brian Switek Books by Brian Switek Brian Switek has written books about: Nonfiction History & Society Science & Health Facebook Twitter Google+ Email NPR stories about Brian Switek Robert Krulwich/NPR Krulwich Wonders... The Subtle Mysteries Of Dinosaur Sex August 6, 2013 This we know: that dinosaurs had babies. This we also know: that to have those babies, dinosaurs had sex. But here's what we don't know: with their size, their spikes, their scales, their genital equipment, how did they manage to do the deed? This doesn't prevent us from wondering. Robert Krulwich/NPR Krulwich Wonders... A Beautiful Notion: That Caterpillars Killed Off The Dinosaurs July 1, 2013 One of the great dinosaur puzzles, the dinosaur mystery, is why did they suddenly die off? Scientists have been debating this question for almost a hundred years and one of the most beautiful notions came from an insect scholar who thought maybe caterpillars did it. I'm not making this up.