Those Jaws cannot be pryed open by a woman or a man. Up to 2,000+ lbs/ square inch compared to a humans 120 psi. A lions bite is 600 psi. What happened is the animal got scared and opened them. "A human ... on my back ... oh, no!" Animals fear man, even a great white shark. A scuba diver proved it and swam towards one and it fled. That guy who confronted grizzly bears for years, stood his ground and yelled at them, made noise and they went away ... until one caught him off guard one day and attacked.
I had a choice to move to Texas or Florida and I chose Texas - because I wanted a dog and imagined this sort of thing happening in Florida while oeacefully walking along a lakeside. If they whip those spiked tails at you, they can break your legs. That is some woman!