How many kilograms and how long are toothed whales born

WhalesThere are many types, the smallest of which weighs about two tons, and the largest weighs about 150 tons to 200 tons.

Whales are a type of mammal.

It looks like a fish, most of them inhabit shallow seas, and a few can survive in fresh water. It can reach between 20 and 30 meters in length and can weigh up to 100 tons, which means that its weight is equivalent to about 20 African elephants.

Or the sum of the weight of about 2,000 people.

Characteristics of whalesWhales are large, with the largest body length reaching 30 meters; The "fountain-style" breathing method is a unique habit of whales. Breathe with your lungs, dive into the water after inhaling at the surface, and can dive for 10 to 45 minutes; The head is large, the eyes are small, the ear shell is completely degenerated, the neck is indistinct, the forelimbs are fin-shaped, and the hind limbs are completely degenerated; Most species have fins on their dorsal backs; The tail is horizontally finned and is the main locomotor organ.

The maximum body length can reach more than 30 meters, and the minimum is 10 meters long. Currently, the largest whale known weighs about 190 tons, and the smallest is also 2,000 kilograms. A sperm whale weighing more than 40 tons and about 17 meters long was found in our country.

Adult whales have 30 tons and juvenile whales have 2 tons.

The body structure and living habits of cetaceans are obviously different from those of any mammal, so they have been listed as a single order for a long time. Its ancestry and evolutionary history were once controversial, but with the continuous progress of related research, it has been fully confirmed that cetaceans evolved from terrestrial artiodactyls 50 million years ago. DNA sequencing showed that cetaceans and hippos were sister groups, and their clades were sister groups to ruminants.

In order to avoid artiodactyls becoming parmassive (i.e., missing part of the evolutionary clades), the current classification classifies cetaceans as artiodactyls and downgrades them to subcetaceans.

The largest on earth - the size of a blue whale, 7 meters in birth and 24-27 meters in adulthood; Baby blue whales are 6 meters in birth and 21-22 meters in adults. The newborn weighs about a ton, and the adult weighs 100-120 tons. The largest blue whale catch was in 1904 near the Falkland Islands in the Atlantic Ocean.

This blue whale is 195 tons long and weighs 195 tons.

The blue whale can be called "the best in the world". The body length is generally 24 meters, and the mass is more than 100 tons. The largest blue whale can reach a length of 33 meters and a mass of more than 190 tons. That's about the equivalent of 32 elephants (the largest animals on land).

An adult whale weighs 50 tons.

The average whale is about 10 meters long, and the largest can reach 20 meters.

Whale sharks are the world's largest fish, reaching more than 35,000 kilograms. The largest specimen of this shark is a metre whale shark. However, the blue whale is the largest living animal in the world, larger than the dinosaurs.

In March 1926, the people of Sherot Island in southern England captured a blue whale, more than 33 meters long and as tall as a ten-story building; Weighing 170 tons, it is 30 times heavier than the elephant, the largest terrestrial hailstone.

If this blue whale is placed on a giant scale, the other one needs to stand 15 elephants, 50 fat cows, and more than 1,000 fat boys to be weighed.

The blue whale heart alone weighs more than 700 kilograms, which is equivalent to a tall horse; A kidney weighs about 1 ton; A tongue weighs tons; The intestines are 250 meters long; 50 tons of meat can be taken. This blue whale has more than 170 barrels of whale oil, which is equivalent to the total fat of more than 1,700 large fat pigs.

Whale body size differences:

In fact, the body shape of whales varies greatly, the small ones are about meters long, the largest can reach more than 30 meters, the heaviest can weigh more than 170 tons, and the lightest ones are 2,000 kilograms, which are divided into baleen whales and toothed whales.

Different species of whales vary in length, with the smallest of the sails being more than 6 meters in length and the largest blue whale being around 33 meters. Cetaceans are mammals, and although they look like fish, they are actually close relatives of hippos, and they are divided into two major branches, one is baleen whale and the other is toothed whale. Baleen whales have no teeth, rely mainly on filter feeding, and are very large; Toothed whales have teeth and prey mainly on fish and cephalopods.