The Chinese salamander is a very rare nocturnal salamander that lives in lakes and streams in the mountains of China. This one is believed to be at least 200-years-old. It measures 4 feet 7 inches long and weighs 104 pounds. These animals are becoming increasingly endangered due to habitat loss.
Maybe that's why this giant was found in a cave in Chongqing Municipality in China. He's since been transferred to a research facility. You can really tell how big he is here with a scientist for scale: