A Dentist’s Guide to the Map of Life

By Eric Kilby from Somerville, MA, USA (Clouded Leopard Mouth Open) [CC BY-SA 2.0], via Wikimedia Commons
Clouded Leopard Mouth Open By Eric Kilby from Somerville, MA, USA [CC BY-SA 2.0], via Wikimedia Commons
Imagine two people from two different tribes, separated by space or time, coming up with the same idea or way of doing something. If it is a good invention it will surely spread within each of their families and communities. Is this a coincidence, or would it make more sense if Continue reading