Fear of death is a product of the human mind. Animals, for instance, have no idea that they will one day die. Even when an animal is under attack, it will have fear, but not of death.

Now, death itself, is, in a way, also a product of the human mind. For we are, on a fundamental level, all the same creature; it just happens that there are no neuronic connections between our brains, so it appears to us that we are different creatures, but we are not. So in effect, death does not exist in the way that most people envision it.