The geoduck or gooyduck is the largest species of clams on the face of the earth. The clam itself is 15 to 20 cm long, which is pretty big but the really impressive part is its long siphon that often reaches one meter in length. it weighs between 0.5 and 1.5 kilograms, but there have been stories about 7.5 kg heavy gooyducks.
The incredible aspect of the gooeyduck isn’t only limited to its size, but also to its lifespan. It has a life expectancy of 146 years, which makes it one of the longest-living organisms in the animal reign.
As repulsive as they look (personal opinion) geoducks are a delicacy in China and Japa, where they are often eaten raw, sashimi style.