What does a black snake skin look like?

Black rat snakes and black racer snakes are two different types of snake. Both are...well...black. They are almost identical in appearance, however black racers tend to be more slender. If you encounter a black snake that quickly slithers away or becomes aggressive, it is probably a black racer. If you encounter a black snake that freezes in place or slithers away slowly, it is probably a black rat snake.