At 170 to 200 tons, the blue whale is larger than any dinosaur known to have lived. The largest dinosaur lived in the Mesozoic Era and was the Argentinosaurus, which weighed up to 99 tons.Continue Reading
Although it is difficult to obtain an accurate measurement of a blue whale due to their enormous size, scientists estimate the majority of these animals are between 90 and 98 feet in length. Generally, the Argentinosaurus was slightly longer than the blue whale, but in terms of weight, the blue whale is considered to be larger than any other animal that has lived on the planet.
Blue whales eat roughly 4 tons of krill each day. Even baby blue whales can weight 3 tons at birth. The blue whale's heart weighs as much as a fully-grown elephant, and its brain weighs around 15 pounds. Its skull is an astounding 19 feet long.Learn more about Marine Mammals
The blue whale is the largest mammal in the world, and its massive tongue can weigh as much as an elephant, or 15,000 pounds, according to National Geographic. The tongue is an important muscle used in the whale's unique feeding routine.Full Answer >
Besides humans, the blue whale's enemies are killer whales and large sharks. Adult blue whales are much larger than any individual killer whale or shark, so these animals tend to attack calves. Few creatures are capable of subduing a healthy adult blue whale, which is the largest creature on earth. Blue whales feed mainly on krill.Full Answer >
Depending upon the species, a whale's stomach can be enormous, holding up to 2,200 pounds of food in the case of the blue whale. This whale's main diet consists of krill and copepods filtered through stiff, comb-like teeth called baleen plates.Full Answer >
Humpback whales range between 48 and 62.5 feet in length and can weigh up to 40 tons. As baleen whales, humpbacks' consume krill, plankton and small fish. The complex vocalizations of humpbacks are called songs and can last for hours, but the purpose of these sounds is unclear.Full Answer >