Bengal tigers may be the only animal that regularly targets humans as prey. A book called 'Man-Eaters of Kumaon' by Jim Corbett describes one particular tiger that ate more than 400 people. Mountain lions in the US; and sharks worldwide also attack people for food.
Usually a person who is attacked by an animal in the wild it is due to the fact that the animal is either sick and injured and sees the human as a easy meal, or the animals is a victim of loss of habitat and humans are invading there usual hunting grounds, or an animal may attack out of defense of it's self or its family.
Yes therre are many. If we lived among other animals we have plenty of predators. Lions, tigers, hippopotamus, crocodiles to name a few. We are definitely not at the top of the food chain.