Who would have thought there were NINE different species of shrews to be found in the Parkway? And what is a shrew anyway? A shrew is like a mole, but smaller and not as built for digging as a mole is. They mostly hunt for insects above ground while the mole hunts for its insects in the tunnels it digs underground. But shrews will also go into those tunnels made by moles when they feel like a change of pace, and well as tunnels made by voles, which are also like moles, except instead of eating insects they eat plants.