Well, that's what the caption says, but it doesn't look like any puma I've ever seen. This picture is supposedly from 1935 Russia. The cat looks more like a jaguar, but aren't they deadly enough without firearms? Redditor Ayatrolla gives the caption of the photo as he found it.
Puma Calls For Food By Firing A Cannon
Though most animals are gun-shy, a wild puma kept at a laboratory in Moscow, Russia, deliberately fires a cannon to signify that it is hungry. Laboratory workers trained the animal, in accordance with the theories of Dr. Ivan Pavlov, noted physiologist, by firing the piece and giving the puma a piece of meat after each shot. Soon it overcame its natural dislike for the sound and learned to get its meals by climbing upon a platform and pulling the firing cord.
Looks more like a circus act to me. What do you think? Link