Hurry, hurry! I m looking for whale information. For example, the characteristics of whales, the liv

Hey, my children, don't think that we whales are fish, if you do, then you are very wrong, we whales are mammals. In addition, I would like to reveal a little secret to those who think I am a fish: I should supplement the biological "nutrition", hahahaha!

Our whales are very big animals, and a small tongue alone weighs as much as a dozen big fat pigs! If we open our mouths, you humans will stand in our mouths and raise your hands and not touch the roof of our mouths; Four people sat around a table in our mouths, and it looked very spacious! Hmph, look how big we are!

Oh, by the way, let me tell you, don't say this to my ancestors, it knows, you have to criticize me! We have a lot of family members, but each has its own habits. Look, the first one to appear is our little brother - baleen whale, he has no teeth, so his food is small fish and small shrimp; The second one to appear is my sibling, whose name is naturally I don't say you know, by the way, it's called toothed whales, and they have extremely sharp teeth, so we generally eat big fish and sea beasts; That one is our leader, the killer whale, he is very powerful, if you provoke him, he will be reckless!

We whales breathe with our lungs. When you exhale, you have to float to the surface, and the exhaled air forms a column of water. But different species of whales spew different columns of water

The water column of the little brother baleen whale is vertical, thin and tall; The water column of our toothed whale is sloping, thick and short. Look, we still have a lot of knowledge about cetaceans! The way we slept was also fun.

To be on the safe side, we always slept in groups with our heads facing in and tails facing outwards in a circle. We were viviparous and grew up drinking the milk of our mothers. We grow very fast, we can grow 30 kg - 50 kg in a day.

And we have a long lifespan, we can live for decades - a hundred years. After listening to my own statement, everyone will know something about our whales! If you come to us in the future, I will definitely welcome you!

The Latin scientific name of cetacean is derived from the Greek word for "sea monster", which shows the reverence that the ancients had for these behemoths that inhabited the sea. In fact, cetaceans vary greatly in size, from small ones that are only about 1 meter long to the largest ones that can reach more than 30 meters. Most of them live in the ocean, and only a few species inhabit the freshwater environment, and their body shape is very similar to that of fish, and their body shape is streamlined, suitable for swimming, so they are commonly known as whales, but this similarity is just a convergence phenomenon in biological evolution.

Because cetaceans have the characteristics of viviparity, lactation, constant temperature, and respiration with lungs, they are completely different from fish, so they belong to mammals. A whale's heart beats only 9 times a minute.

The ancestors of cetaceans were originally animals that walked on all fours on land, and they may have been insectivores or carnivores who lived mainly along the seashore, but after a long time, they were attracted by fish and other foods in the water, and after a long time, they returned to the sea from the land and gradually adapted to marine life. The earliest whales are the first whales that appeared in the middle of the Eocene about 55 million to 36 million years ago, the first tooth whale and the late Eocene protocene, etc., they are compared with the existing whales, the skull is relatively small, the nostrils are located in front of the head, and have not been moved to the top of the head, the teeth are similar to the teeth of ancient insectivores and flesh-toothed teeth, all of which are 44 or less than 44, and the tooth shape and skull are also very similar, with only a few differences, but they already have a similar body shape to adapt to living in seawater and fish.

Nibbling whale swallow, pronounced cán shí jīng tūn. It means to encroach step by step like a silkworm eating mulberry leaves, and to annex it all at once like a whale swallowing it. The metaphor is a gradual encroachment or annexation in one fell swoop.

From Ji Yun's "Notes on Reading Wei Caotang": "You cannibalize whales and swallow whales. There is almost nothing left to drain. ”

1. Whales do not drink seawater, instead, they extract water from their food by metabolizing fats. While their specific range varies from species to species, whales live in oceans around the world. Because whales have a lot of fat in their bodies, they can easily float in the water.

2. Like dolphins, whales are believed to be descendants of land animals that have lived on land for millions of years and returned to the water about 50 million years ago. About 50 million years ago, whales walked on land and were about the size of wolves.

3. Whales have to surface frequently to breathe, so only half of their brains are sleeping. Whale earwax shows the age of the whale, similar to the way tree rings reveal the age of a tree.

4. Sperm whales can dive up to two miles deep in the water, and their bodies have unique physiological adaptations that allow them to survive the intense cold and oppressive stress of diving. The blue whale is the largest whale in the world and is also considered the largest animal in the world. Adult blue whales can reach up to 108 feet in length and weigh up to 200 tons.

5. Because each type of whale's tail has its own unique characteristics, it allows whale watchers to identify different species from a distance. The blue whale calls louder than a jet engine and can last up to 30 seconds, and the sperm whale is actually the loudest whale in the world.

6. Whales have no other natural predators other than humans. Humans have been hunting large mammals for thousands of years for their meat and other raw materials. Sperm whales sleep upright in the water with their noses poking out of the water.