Author: Mark Grabowski, Senior Lecturer of Biological and Environmental Sciences, Liverpool John Moores University

Natalia Deriabina/Shutterstock Why don’t humans have tails anymore? Olivia, 12 , the Netherlands. Great question, and it gets to the heart of what we are as humans. Think about your own family – do you have cousins? If so, you and your cousins share grandparents and these are your common ancestors. Now imagine going back […]