A living thing that lives more than 400 years.

ocean quahog(image source: wikimedia commons)

These are called ocean quahog found in North Atlantic Ocean live more than four hundred years. It is also called by the names such as black clam, mahogany quahog etc. The size of these species is around 50mm. The longest reported age is 507 years and is collected in 2006. Previously it was a 374 year old was collected in 1868.

Longest living species. Longest life span