Whale Nature Common Sense 30, Whale Nature Common Sense

Whales are mammals and are now the largest animal in the world.

Whales are mammals that live in the ocean.

Some whales are very large, and the largest can be up to 30 meters long.

The whale's DAO body is shaped like a fish and is fusiformal.

The head is large, the eyes are small, and the ear shells are completely degenerate.

The neck is not noticeable. The forelimbs are fin-shaped, and the hindlimbs are completely vestigial; Most species have fins on their dorsal backs; The tail is horizontally finned and is the main locomotor organ. Toothed or edentulous.

Whales, the most in the world.

Large mammals, not fish, viviparous. It is divided into baleen whales, killer whales, pseudo-killer whales, and seated whales. The whale's body shape resembles that of a fish, which is fusiform-shaped; The head is large, the eyes are small, the tail is horizontally finned, it breathes with lungs, and generally feeds on plankton, molluscs, and fish.

The ancestors of whales originally lived on land, but due to changes in the environment, they later lived in shallow seas close to land. After a long period of evolution, the whale's forelimbs and tail gradually became fins, and the hind limbs completely degenerated and adapted to life in the ocean. The whale is surrounded by treasures.

Leather can be tanned, and leather shoes, bags, and leather clothes made of whale skin are soft in texture and beautiful in pattern, no less than cowhide. The subcutaneous fat layer of whales is very thick, up to a dozen to tens of centimeters, which can be used for oil refining, edible or other chemical raw materials.

Viviparous, breathes with lungs, and is a mammal.

The whale is a mammal, and although it lives in the ocean, it is not a fish.

The whale is the largest of the animals that exist in the world today, and the whale is a mammal that lives in the water all its life; Because they need the buoyancy of water to support their bodies, they are so dependent on water that they cannot live once they leave it; The whale is shaped like a fish, with nostrils on the upper part of the head, and breathes with its lungs.

Blue whales are the largest mammals.

We are indeed a person's way of life, a person's way of life and a way of life are indeed very.

Cetaceans are completely aquatic mammals, and some rely mainly on echolocation to find food and avoid enemies. They generally feed on mollusks, fish, and zooplankton, and some species can also prey on seals, fur seals, etc. Every once in a while, it is necessary to ventilate.

Generally, in winter, they swim from the high-latitude cold-water area to the low-latitude hot water area to give birth, and in summer, they swim back to the high-latitude cold-water area from the low-latitude to hunt.