成年灰熊最大可達8尺高及900磅重

出處: Holl, Frank, engraver. "Native Californians lassoing a bear / F.O.C. Darley, fecit ; Francis Holl, sculp. New York : D. Appleton & Co., c1873. Prints and Photographs Division of the Library of Congress. Reproduction Number: LC-USZC4-2630