I agree.

The croc IS the perfect assasin.Color/night vision and the ability to be motionless.Rumor says he can survive on one meal for many months, and stay under water for prolonged periods of time.

Nothing could be worse than going by the waters edge and have some monster croc and pals grab/drag you into the water, roll you, and rip you to pieces.

Natures purpose here?? I don't understand. They have no natural enemy & they just don't get the weak--
they get the strong too--