What are the main characteristics of platypus, what are the basic characteristics of mammals on plat

The platypus is about 40 cm long, covered in soft brown dense short hair, with short limbs, five toes with hooked claws, and a membrane-like webbing between the toes, resembling duck feet, a flattened snout that resembles a duck's beak, and a large, flattened tail. The most primitive and exotic of the living mammals, found only between Cape York in eastern Australia and South Australia, but also on the island of Tasmania. The platypus is the most primitive mammal and is oviparous at this point like reptiles and birds!

The platypus is an expert swimmer, paddling with its webbed feet on its forelimbs and orienting itself on its hind limbs. Hunt some small aquatic animals that live in the river. In addition, the platypus is one of the very few mammals that defends itself with venom.

The basic characteristics of mammals in platypus are as follows:1. The platypus is covered with columnar hair, which is not possessed by non-mammals.

2. The platypus feeds its offspring with milk, which is a must for mammals.

3. The platypus is viviparous and has a constant body temperature.

4. Platypus breathes with lungs.

Racial characteristics of the platypusAs mammals, they lay eggs rather than live young; "sweating" to produce milk; long with a stinger; There are even 10 sex chromosomes. Recently, an international research team led by the University of Copenhagen, BGI and others sequenced the platypus' genome and provided answers to the question of the origin of some of the platypus' strange traits. It lays eggs but also produces milk to feed its young, has no teeth, has poisonous stingers, has webbed feet, has shiny fur, and has 10 sex chromosomes.

The platypus is covered in soft, brown, dense short hair, and its skull is smaller than that of echidnas, and its brain is hemispherical and smooth. The limbs are very short, with hooked claws on the five toes, and there are membrane-like webs between the toes, resembling duck feet, and the webs are folded in the opposite direction on the palms when walking or digging. It was covered with soft fur, like a fine waterproof coat, and its mouth was extremely wide and flat, and it was attached to its head like a mask, shaped like a duck's beak, and its texture was soft and leather-like, and it was covered with nerves.

1. The platypus is covered with soft brown dense short hair, and its skull is smaller than that of the echidna, and the brain is hemispherical and smooth without a return. The limbs are very short, with hooked claws on the five toes, and there are membrane-like webs between the toes, resembling duck feet, and the webs are folded in the opposite direction on the palms when walking or digging. It is covered with soft fur, like a fine waterproof suit, with a very wide and flat mouth, which is attached to the head like a mask, shaped like a duck's beak, soft and leather-like, covered with nerves, and can receive radio waves from other animals like a radar scanner.

2. In addition to lactation, platypus lives a solitary life all its life, spending most of its time in the water and is an expert swimmer. Its fur is oily and keeps its body warm in colder water. When swimming, paddle with the webbed feet of the forelimbs and grasp the direction with the hind limbs, prey on some small aquatic animals that live in the river, and rely on electrical signals and their tactile sensitive duckbills to find food at the bottom of the riverbed.

The basic characteristics of mammals in platypus are hair on the body surface, diaphragm in the body cavity, pups feeding on the milk of the mother, lung respiration, and constant temperature. However, it has similar characteristics to reptiles, that is, the pups are hatched from eggs, unlike other mammals, which are directly produced by the mother. <

The basic characteristics of mammals in platypus are: sleepy and hairy body surface, diaphragm in body cavity, pups feeding on the milk of the mother, lung respiration, and constant temperature. However, it has similar characteristics to reptiles, iviparous, that is, the pups are hatched from eggs, rather than being born directly from the mother like other mammals.

Mammalian characteristics:The main characteristics of mammals are that they have a coat on the surface of their bodies, they use their lungs to breathe, and their brains are relatively developed. The body is generally divided into five parts: head, neck, torso, limbs and tail.

Breathe with lungs, have a constant body temperature, and are homeothermic animals. Teeth differentiate into incisors, canines, and buccal teeth. Mammalism and viviparity are the most distinctive features of mammals.

The embryo develops in the mother's body, and the mother animal directly produces the fetus, and the mother animal has mammary glands that can secrete milk to feed the fetus.

There are many strange things about the platypus. First of all, it has a peculiar shape. Its body resembles that of a beast, with dense short hairs all over its body, and its body shape is streamlined, with a length of about 50 centimeters.

Its beak is an extension of the jaw and resembles a duck's beak. Don't look at its beak like a duck's beak, it's much more advanced than a duck's beak. The inside of its mouth is, and the top of the horn is covered with a soft, elastic black layer**,**There are some special structures in it, and you can feel the movement of the electric field in the animal's muscles.

This allows the platypus' mouth to accurately catch small animals hiding in the mud at the bottom of the water. It also has ridges on the front edge of its mouth that can crush or bite food, and "filters" on both sides of its jaw that squeeze water out.

From the head of the platypus, it seems that it has no ears, but in fact it has ear piercings, all it does not have are external ears, and when it dives, the ear piercings and eyes are close together, and the muscular folds on the ear piercings and eyes cover the ear holes and eyes tightly, making it impossible for water to enter.

The platypus is a rare and precious animal endemic to Australia. The platypus is adorable, with a duck-like beak and webbed paws that make the platypus look very likable. But the platypus is the only venomous mammal currently found in the world.

Male platypus has thorns on its hind feet and contains venom, almost similar to snake venom, and if a person is stabbed and poisoned, it will cause severe pain immediately, and it will take several months to recover, but it will not be fatal.

Female platypus also has a stinger at birth, but disappears when it grows to meters. The platypus grows on the banks of rivers and streams, spends most of its time in the water, and its fur has oil to keep its body warm in colder water. When swimming in the water, it has its eyes closed, relying on electrical signals and its tactile sensitive duckbill to find food at the bottom of the riverbed.