One thing that makes the blue whale unique is the fact that it is the largest animal that ever lived on the earth. They can be up to 94 feet long. They have a blue gray skin with small white gray spots. They can weigh about 120 tons. More than often, the female blue whales weigh more than the males. Another amazing thing about the blue whale is the size and weight of their hearts. A blue whale heart can weigh about 1,000 pounds. Didn-t catch that? This explains it.

The sounds that the blue whales makes are very loud. They are considered to be the loudest animal on earth. Their call can reach up to 188 decibels which is louder than a jet plane or a screaming person. These sounds can be painful to the human ears.

Blue whales are seasonal feeders and can eat an average of 2,000 to 9,000 pounds of plankton on a daily basis. One of the reasons that they can consume a lot of food on a daily basis is because their tongue weighs 4 tons and they have 320 pairs of black baleen plates.

In conclusion, the blue whale is one of the most unique and fascinating creatures on the earth.