Why is the Blue Whale One of The Biggest Animals in the World?

The blue whale holds the title for being the largest animal on the planet. Adult blue whales can reach lengths of up to 100 feet (30 meters), and their tongues alone can weigh as much as an elephant. Blue whales have a heart that is massive in size. In fact, it's so large that it can weigh as much as a car and is about the size of a small car. The heart is essential for pumping blood throughout their enormous bodies.
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