OK, who were these people being carried off by eagles???
And any people who were stupid enough to get eaten by crocodiles on a regular basis are about as smart as water buffalo, and deserve to be extinct. One member of the tribe falling prey every few years, ok, that is acceptable. But if you are going down to the local watering hole and keep getting eaten, you are not going to last long enough to evolve into anything. Me, I'd find another water source the first time it happened to anyone in my tribe.
Me, I'd make the crocodile fearful of me.
People are eaten by crocodiles every year in Egypt. Crocs kill more people than sharks. Remember, in Northern Africa crocs stake out ALL available water sources. You either have to go to their watering hole, or you die of thirst. The trick is to spot them and keep them in view while you drink.