Ursula Böttcher, who trained polar bears to perform in circus acts, with one male bear in 1984.

Tigers are both magnificent and deadly animals. This post contains content that may be considered graphic to some readers.

Lion Tamer Inspiration

Download this stock image: Animal tamer Stepan Denisov with the Tiger on the Ball show in the Moscow State Circus arena - B9EAH9 from Alamy's library of millions of high resolution stock photos, illustrations and vectors.

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Lion tamers have a habit of putting their heads inside lions' mouths, which are made to crush the spines of bulls. So you can imagine what those jaws could do to a person's skull.