66M-year-old 'crazy beast' discovered in Madagascar: An 'animal for which we don't have any real parallels'

During the age of the dinosaurs, the planet looked very different than it does today, with supercontinents reigning supreme and bizarre-looking creatures walking the Earth. Now, researchers have discovered a 66-million-year-old fossil of the world's oldest mammal, for which there aren't "any real parallels."