Goldfish Have An Incredible Will To Survive

 New Zealand: Goldfish survive 134 days without food.

Two goldfish, named Shaggy and Daphne after characters from the animated television show Scooby Doo, have become the smallest and hardiest survivors of the devastating February earthquake in Christchurch that killed 181 people.
The fish spent four and a half months — 134 days — trapped in their tank in the city's off-limits downtown without anyone to feed them or even any electricity to power their tank filter before they were discovered this month and rescued.
"It's certainly an incredible story. I wouldn't have guessed that fish could survive on their own for four months," said Paul Clarkson, curator at the Monterey Bay Aquarium in California. "Goldfish are very hardy critters."

This suggests the survivors could have been ruthless murderers and cannibals:

There were six goldfish in the tank when the earthquake struck. By the time the survivors were found, no trace remained of three of the fish. A fourth was found floating in the tank.

The image shows two random goldfish, probably not even New Zealand goldfish.