It’s partially true.
A blue whale’s tongue can approach the weight of an adult female elephant. According to National Geographic, “Their tongues alone can weigh as much as an elephant. Their hearts, as much as an automobile.”
Let’s compare the weight of an elephant with that of a blue whale’s tongue.
How much does an elephant weigh?
According to the San Diego Zoo, male elephants weigh up to 15,000 pounds and females weigh up to 8,000 pounds. Baby elephants weigh 198 to 264 pounds at birth.