What is the significance of the reproductive development characteristics of rabbits to the survival

The reproductive development of rabbits is characterized by viviparity and lactation, which greatly improves the survival rate of offspring.

The reproductive development characteristics of the family have a lot of importance for the survival of organisms, rabbits generally she eats less, the reproductive rate is relatively fast, and the economic growth is 11 kinds of fast-making breeding.

Characteristics of rabbits: fast movement, eyes on both sides of the skull, long and pointed ears, thermal insulation and increased hearing, three-petaled mouth, two large front teeth.

Growing environment: Wild rabbits mostly grow in deserts, desertified grasslands, tropical sparse forests, dry grasslands and forests or woods; Breeding rabbits need a clean, hygienic and ventilated living environment.

Rabbits' living environment: generally in the bushes or woods along the river. In spring, summer and autumn, they feed on plants and trees, and in winter, they eat young bark and branches. And the living temperature is kept around 15 to 25 all year round.

Habits: Rabbits have nocturnal habits, sleepiness, timidity, cleanliness, dryness, and sensitivity to changes in temperature and humidity.

1.The main characteristics of rabbits are as follows: head, the head of rabbits is long, which can be divided into anterior eyes and brain, head and neck cranial regions.

2.Mouth, rabbit mouth is shorter, there are upper and lower lip, of which the upper lip has a longitudinal fissure, also known as the open mouth, the front teeth are exposed, and there are tentacles on the side of the mouth, and the rabbit has a total of 28 teeth.

3.Nose, the nostrils of rabbits are large, oval, and the inner margin is connected to the longitudinal fissure of the upper lip.

4.Eyes, rabbit's eyeballs are round, and the angle of view of one eye is 180 degrees, so rabbits use one eye to see things, rabbit eyes have, red, blue, black, gray and other colors, and some rabbits have different colors of their left and right eyes.

5.Ears, rabbit ears are long and large, even more than the length of the head, and some breeds of rabbits have smaller ears.

6.The living habits of rabbits are: nocturnal activities, frequent feeding, and most of the time in sleep during the day except for feeding time.

7.Timid and frightened.

8.Afraid of humidity and dryness, raising rabbits in humid places will get coccidiosis.

9.The group living is poor, and the male and female are prone to fighting.

10.Burrowing, the hare lives in the burrow, and the domesticated rabbit still maintains this habit.

11.To grind the teeth, if you don't grind your teeth, its teeth will keep growing, so when making a nest for rabbits, you should use bamboo poles or metal mesh that rabbits can't bite.

What are the characteristics of birds and rabbits in terms of reproduction, they are completely different from each other, they are oviparous, while rabbits are mammals.

Birds. Birds are usually feathered, oviparous animals with a very high metabolic rate, and the long bones are mostly hollow, so most birds can fly. Birds evolved from reptiles, and there are more than 9,000 species of birds in the world, all of which have wings and feathers, even those that have lost the ability to fly (such as ostriches, penguins, etc.).

The first birds appeared 100 million years ago.

The body is spindle-shaped, the forelimbs are specialized into wings, the body surface has feathers, the body temperature is constant, the musculothoracic is developed, the bones are healed, thin, hollow, and the brain is relatively developed. Having an air bag allows for double breathing, and not having a bladder can reduce body mass. These physical traits are well adapted to flying.

Birds have no teeth but have beaks that can be used to hunt, build nests, and groom their feathers. Birds are good at building nests, and they can build all kinds of nests from the materials they collect. Ornithischia is taxonomically a class under the subphylum Vertebrates.

Feather. Birds are the only animals on earth that have feathers. The vast majority of a bird's body surface is covered with feathers, which not only keep the bird at a constant body temperature, but also allow it to fly. Birds have different shapes of feathers.

Structure. The ** of a feather has a hard shaft, called the feather shaft, the upper feather part is called the feather trunk, and the lower part inserted into the ** is called the feather root. The feather trunk is flanked by feathers, which are made up of a tough substance called keratin, which in turn is made up of feathers and branchlets.

Grow. Feathers are grown from the follicular vesicles of the feathers on birds**, and the parts are grouped together in a special way. Most birds moult at least once a year, when new feathers grow and old feathers fall off. Birds renew their already damaged feathers through moulting.

Freshman. Birds usually moult twice a year, which shows that feathers have a strong ability to regenerate. Scientific studies have shown that feather stem cells are distributed in a ring on the wall of the feather follicular vesicle, which can proliferate and differentiate, and the differentiated cells grow upwards to produce feathers.

The proliferation and differentiation of feather stem cells allows the entire feather organ of birds to grow and regenerate.

Type. Bird feathers can be broadly divided into four types: body feathers, down feathers, tail feathers, and wing feathers.

The body feathers cover the whole body, forming a smooth, streamlined body surface of birds; The down is fluffy, so that the warm air will not dissipate quickly; The tail feathers and wing feathers are more powerful and are used for flight.

If you want to have any characteristics with rabbits in terms of reproduction, there must be more than the same, birds are eggs, rabbits are fetal.