what is the difference between crocodiles and alligators
1 Snout shape: Alligators have wider, U-shaped snouts, while crocodile front ends are more pointed and V-shaped. 2  Toothy grin: When their snouts are shut, crocodiles look like they're flashing a toothy grin, as the fourth tooth on each side of the lower jaw sticks up over the upper lip.oming face to face with a crocodile or an alligator, you'd see a mouth full of serrated teeth that would likely scare the bejeezus out of you. The two reptile groups are close relatives, so their physical similarities are expected. Upon closer inspection, not recommended out in the wild, you'd spot glaring differences: