updated 02:22 AM EST, Sat October 25, 2014

"Family planning and the reproductively gifted brown rat do seem like a natural fit. If you take world domination as your yardstick, Rattus norvegicus is probably the earth’s most successful mammal after humans"

Take a three-tonne African elephant and a scrawny New York subway rat and you have yourself two creatures that bear little resemblance to each other. One thing that connects them is some small and furry mammalian ancestor that lived on planet earth, say, 65 million years ago. And now here’s another: birth control.

READ THIS ARTICLE

EARTHTOUCHSHOWS

LATESTPHOTOS