Python
A Python, similar to this one eating an alligator, ate an entire deer Reuters

The complete carcass of a deer was found in the stomach of a 16 ft long python after hunters had captured the reptile in Everglades, South Florida.

In one of the largest reptiles ever found in the region, the hunters were amazed to find the 76lb deer still as one in the animal's stomach.

To make room, the girth of the Burmese python, had stretched to over a metre after it had squeezed the mammal to death by coiling itself around the torso. It then proceeded to eat it whole in a process that could have taken many hours.