Polar bears appenrenc is mostly a big whith/yellow fur mammel whith a black skin that under has a layer of fat narrow skull, smaller neck lower shoulder hump the polar bears teeeth are adapted to eat meat since its diet is mostly meat and seals and finaly there paws are large so that they can normaly walk on snow and all of these apperences are because of its physical adaptation and all of these adaptartion statet generations ago.