A Philippines island has the world’s greatest concentration of unique mammals – here’s why

Written by: Ben Garrod Take a normal tortoise. Remove predators. Give lots of food. Leave for 5m years. bearacreative/Shutterstock We’re taught that evolution is all about “survival of the fittest”. But that’s not always the case. In fact, sometimes evolution can be the result of a lucky animal finding “any port in a storm”. And the…