What is the hugest annimal?

The blue whale (Balaenoptera musculus) is the largest known animal to have ever existed. Adult blue whales can reach lengths of over 100 feet (30 meters) and weigh up to 200 tons (180 metric tons). Their tongues alone can weigh as much as an elephant, and their hearts are about the size of a small car. Blue whales are found in all major oceans and are known for their long, low-pitched calls, which can be heard from hundreds of miles away.