Two fishermen in Mexico caught a 2,000-pound (900-kilogram), 20-foot great white shark on Sunday -- one of, if not the, the largest fish ever captured. The two fishermen initially thought they caught a school of smaller fish, and were surprised when they brought up their net and the shark, already dead, was in it.

We were amazed and immediately realized that we had a huge, dead, great white shark, and then we thought 'what are we going to do?' Guadalupe, one of the fishermen, said, according Pisces Sportfishing.

The two fishermen hitched the shark to the boat and towed it back to shore, where 50 people had to help pull it on land.

Though catching a great white shark, especially one this large, is exceedingly rare, fishermen often bring in fish weighing over 1,000 pounds (450 kilograms). Click through the slideshow to see some of the biggest fish ever caught.