- A blue whale’s tongue weighs around 2.7 metric tons.
- Its mouth can hold up to 90 metric tons of food and water, but it can’t swallow anything bigger than a beach ball.
- Its heart can weigh 1300 pounds (600 kilograms). It is the largest of any known animal.
A blue whale’s aorta is about 9.1 inches (23 centimeters) in diameter.
- During its first seven months, a blue whale calf drinks about 100 gallons (400 liters) of milk every day.
- Blue whale calves can gain about 200 pounds (90 kilograms) every 24 hours.
- At birth, they weigh up to 6000 pounds (2700 kilograms)—the same as a fully grown hippo.
Actually—A blue whale heart is the size of a Volkswagen Beetle and pumps 10 tons of blood through the massive blue whale body. A blue whale aorta (the main blood vessel) alone is large enough for a human to crawl through. Like playground tubes.
Fact correction thanks to the National Marine Mammal Laboratory