Of course, all of that assumes that the majority of bull sharks are swimming around with high testosterone levels, which as the data reveals, simply isn't likely. What's worse, though, is that by perpetuating the idea of roided-out sharks, we're giving credence to the idea that bull sharks are mindless killing machines with a taste for blood . While bull sharks are certainly dangerous animals, they are far from the angry maneaters they're portrayed to be. Given that you're still more likely to die from being struck by lightning that by a shark attack , and that there are probably hundreds of thousands of bull sharks in the Atlantic Ocean alone ... I'd say the bull sharks are being pretty restrained.