Meat-eating dinosaurs like this Albertosaurus at the Field Museum of Natural History in Chicago are long gone (phew!). But well before this big critter roamed the Earth came another ancient hunter. And, it is still alive today.
The velvetworm doesn't sport razor-sharp teeth to tear chunks from its prey. Instead, this living fossil uses an altogether different strategy.
© The Field Museum, Neg. # GEO85857_7c. Photo by John Weinstein.