So why does the caterpillar become a butterfly? I remember watching lots of David Attenborough docos as a kid and my two questions were always “how and why?” How does that young antelope know to run from a lion when it’s never seen one before? Why do so many of the babies have to die young? Simple answer Evolution and survival. Animals have evolved to survive and these traits are passed on to the next generation (excuse me while I keep this simple but it is a Sunday while I w