An anonymous reader writes: Constructions workers in Carlsbad, CA. have recently discovered Ice Age mammoth and prehistoric bison fossils during an excavation. The fossils were taken to the San Diego Museum of Natural History for examination and storage. "The bison fossil, which includes a skull and partial skeleton, is the most unusual and probably the most complete of the larger animals found at the project site. These are big animals, much larger than modern plains bison," said curator of paleontology at the San Diego Museum of Natural History, Tom Deméré.