Difference between birds and animals.

Although birds belong to the kingdom of the Animals, they have a number of such adaptations and abilities that significantly distinguish them from all their "colleagues" in the taxon.

Definition

Birds - these are animals whose body is covered with feathers, and the front limbs have changed into wings. With their help, birds fly. About 10 thousand species of birds live on Earth.

Animals is a grandiose kingdom of living organisms, which includes 34 types and about 50 million species of creatures of various levels of organization.

Comparison

Birds are warm-blooded animals. They can fly. This skill determined the morphological and anatomical features of these organisms. The forelimbs of the birds were transformed into wings. Additional adaptations for regulated flight are the tail and massive, muscular legs, which help the animals during takeoff and landing.

Animals can be warm-blooded (birds and mammals), cold-blooded (fish, amphibians and reptiles). Most types and species of animals have no blood at all (sponges, tunicates, or flatworms).

The body of birds is covered with differentiated feathers, which perform a number of functions - from providing streamlining of the body during flight to reducing the heat loss of a small body. The body of animals, in addition to feathers, can be covered with epidermis, scales, skin, chitinous cover, or protected by shells.

All bird bones are as lightweight as possible, but strong. All parts of the ridge, except for the cervical, differ in the fusion of the vertebrae - this ensures the fusion and immobility of the bird's body, which is important for the flight process. Only birds have a keel, as well as a long and highly mobile neck. A significant number of types and species of animals, except for chordates, do not have an internal skeleton at all. An external skeleton is characteristic of arthropods.

The beak opens the digestive system of birds. The metabolism of these animals takes place at an accelerated rate in order to provide animals with the energy necessary for flights. The circulatory, respiratory and excretory systems of unique flying animals operate in the same “maximum efficiency” mode.

Birds have a developed brain and a very high intelligence. These animals reproduce with the help of internal fertilization, laying eggs, incubating and training offspring.

Intelligence higher than the avian is recorded only in representatives of the class Mammals. For the bulk of animals, internal and external fertilization, as well as parthenogenesis, are characteristic. The total mass of animals can increase the number of individuals by live birth, egg-laying and ovoviviparity.

Conclusions TheDifference.ru

  1. The concept of "animals" is more voluminous than the concept of "birds", and the number of bird species is much less than the total number of animal species.
  2. Almost all birds can fly, or their ancestors did it. The overwhelming majority of animals do not have this ability.
  3. Birds are exceptionally warm-blooded creatures. Animals can be warm and cold-blooded, and generally devoid of blood.
  4. Birds are able to fly with their wings, unlike the rest of the biomass of the animal kingdom.
  5. The skeleton of birds has a number of unique adaptations that ensure the ability to fly.
  6. Only birds have feathers and beaks.
  7. The main life systems work in birds at an accelerated rate.
  8. In contrast to the main mass of animals, the intelligence is fixed in birds.
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