Jason Ford
A RAFT full of elephants and rats gets stranded on a remote island. The animals survive and reproduce. But as the generations pass, something odd happens: the elephants shrink to the size of Shetland ponies and the rats grow to the size of cats. They have found themselves at the mercy of one of evolution’s weird rules.
Most of us are familiar with evolution by natural selection, in which species change and diverge over time as those that successfully adapt to their environment pass on the genes that helped them flourish. What you might not be aware of, however,…
