Meet perhaps the tiniest hedgehog species ever: Silvacola acares. Its roughly 52-million-year-old fossil remains were recently identified by a Ƶ-led team working in British Columbia. The hedgehog’s scientific name means “tiny forest dweller,” said CU-Ƶ Associate Professor Jaelyn Eberle of the geological sciences department, lead author on the study. The creature -- a new genus and species to science -- was only about 2 inches long, roughly the length of an adult thumb.