This image was donated by Pearson Scott Foresman, an educational publisher, to Wikimedia Commons, and is thereby in the Public Domain. --- See http://commons.wikimedia.org/wiki/Category:Pearson_Scott_Foresman_publisher
北極熊
animal、bear、biology、black and white、externalsource、line art、mammal、outline、psf、wikimedia commons、zoology
動物、熊、生物學、黑與白、外部源、線條藝術、哺乳動物、大綱、PSF、維基媒體公地、動物學
資料來源：openclipart ( https://openclipart.org/ )