Question: how can you tell the difference between a croc and an alligator?
Answer: Snout Shape: Alligators have a wide, rounded, u-shaped snout, while crocodiles have long, pointed, v-shaped snouts. ... 
Jawline: Alligators have a wide upper jaw, which allows for the teeth to remain hidden in the mouth. ... 
Size and Weight: Both alligators and crocodiles are massive reptiles.