The blue whale is gigantic. Generally ranging in length from 80 to 100 feet (24 to 30 meters), the longest one ever recorded was a magnificent 108 feet long.
Here is a comparison picture for you...
2. How much does a blue whale weigh?
These gentle giants weigh up to 200 tonnes, or around 441,000 pounds.
3. They’ve got big hearts
The blue whale's heart is huge! It is about 5 feet long, 4 feet wide, and 5 feet tall and weighs around 400 pounds; its beat can be detected from two miles away. It is so big and adult can swim through it...
4. ...and tongues
A blue whale’s tongue alone weighs as much as an elephant.
5. How big are blue whale babies?
Blue whale calves are the biggest babies on Earth, easily, and at birth already rank amongst the largest full-grown animals. They pop out at around 8,800 pounds with a length of some 26 feet. They gain 200 pounds a day! Their growth rate is likely one of the fastest in the animal world, with a several billion-fold increase in tissue in the 18 months from conception to weaning.
6. They’re loud … and make long-distance calls for free
Blue whales, in fact, are the loudest animals on the planet. A jet engine registers at 140 decibels, the call of a blue whale reaches 188. Their language of pulses, groans, and moans can be heard by others up to 1,000 miles (1,600 kilometers) away.
The oldest blue whale they’ve discovered was calculated to be around 100 years old, though the average life is thought to be around 80 to 90 years.
