What is the largest animal on earth can weight 200 tons or some as 50 elephants?

The largest animal on Earth is the blue whale (Balaenoptera musculus). Blue whales can reach lengths of up to 100 feet and weigh up to 200 tons, which is equivalent to the weight of about 50 elephants. Blue whales are found in all the world's oceans and are known for their deep, low-frequency calls, which can be heard hundreds of miles away.