Birds do it, and bees do it, so do all animals, some of them in weird and wonderful ways. Quirks & Quarks' latest book explores the more bizarre behaviours of more than 100 creatures, from barnacles to Panda bears. The tiny spider that has to tear off one of its two huge sex organs just to be able to get around; the sea slug that produces a powerful love drug and mates with both males and females; the bedbug that stabs its penis into the female's...