70% of the earth is covered by the ocean, and the ocean is also a very vast world. There are many exotic animals in the ocean. So far, there are 210,000 species of creatures known in the ocean, but according to marine biologists, this is only one-tenth of the real number of marine life.

When it comes to the largest animal in the ocean, people think of whales for the first time. If you rank the different types of whales by size, which ones stand out?

1st: Blue Whale

The blue whale may be the largest animal known to man that has ever lived on Earth. The largest known blue whale can reach 33 meters in length and weigh more than 181 tons. The entire body of the blue whale is thin and slender, with a bluish-grey back.

The blue whale is not only the largest cetacean, but also the largest living animal and the largest mammal to date. Its weight is equivalent to more than 25 African elephants, or the combined weight of 2000-3000 individuals. Blue whales have very large heads and can hold 50 people on their tongues. Its heart is as big as a car. Just a newborn blue whale calf is heavier than the largest animal on land, the African elephant.

2nd: Right Whale

Right whales have a spindle-shaped body and are smooth and hairless throughout, and they are the second-largest whale species in the world. Adult right whales can grow up to 18 meters in length and weigh 100 tons. Right whales are mostly black, with a special crust on their heads.

Right whales usually travel alone or in groups of 2 or 3 and approach bays and around islands. They swim very slowly, exhaling in a jet of water up to 4 to 6 meters and raising their caudal fins above the water's surface.

3rd: Sperm whale

As one of the representatives of deep-sea animals, the sperm whale is 20 meters long and weighs about 60 tons. Studies have shown that they need to eat a ton of food every day, so in order to survive, sperm whales need to dive to a depth of 2,000 meters to hunt, and squid and squid are their favorite foods.

Fourth: Bryde's Whale

Although far less well-known than blue whales and sperm whales, Bryde's whales are also among the largest in size in the whale family. In adulthood, Bryde's whales can reach a length of 15 meters and weigh close to 40 tons.