Citation :
« The animals, all owned by Miss Shipman, are the only North American wild beasts trained to appear in motion pictures and include deer, elk, bear, cougar, wild cats, lynxes, wolves, coyotes, skunks, raccoons, weasels, chipmunks, mink, marmots, badgers and many other species. It is a remarkable collection when it is borne in mind that all the animals have appeared before the camera. Neither concealed wires nor leashes were used to restrain them when they 'acted' in The Grub-Stake. Kind words were the only persuasion. »
-- Victoria Daily Times

Source :
VICTORIA DAILY TIMES. « Wild animals give thrills at Royal: Nell Shipman's private zoo requisitioned for production of 'The Grub Stake' », Victoria Daily Times, 11 juin 1923. [en anglais]