Paleontologist discusses discovery of prehistoric whale fossil Olivier Lambert, paleontologist at the Royal Institute of Natural Sciences of Belgium, discusses the recent discovery in Peru of the well-preserved fossil of an amphibious four-footed ancestor of whales and explains that part of the skeleton "shows similarities with certain groups of current semiaquatic mammals such as otters". IMAGES of the Royal Institute of Natural Sciences of Belgium and SOUNDBITES by Olivier Lambert a Belgian paleontologist