“Our hundreds of useless olfactory genes are left over from mammal ancestors who relied more heavily on the sense of smell to survive ... Our genes are similar to primates’, less similar to other mammals’, less similar still to reptiles’,… — Neil Shubin Copy Share Image
“Even if the left-bank population reaches the same size as the right-bank population, their genes on the left bank will have a great deal less variety, because they are all descendants of a much, much smaller population. This is called… — Bill Nye Copy Share Image
