Information about animals
Animals are a living organism on the surface of the earth, a living organism that includes vertebrates and invertebrates. It is classified according to several characteristics. It is a part of the environment that is of great importance in all respects and is a vital kingdom. We will classify animals into several groups with certain characteristics including the following.
Classification of animals
=== By nature ===
.Pets: animals that can be raised at home, where it does not cause harm and live with it, and there are pets are a source of livelihood for owners such as sheep and cows, which depend on farmers for their livelihood, for example pets cats, rabbits, sheep, from animals.
.Predatory animals: Animals that humans can not live with. They can hurt them. However, there are some people who have been able to live with these animals, but there is a possibility that they will harm them. These animals are just visiting the zoo such as the lion, the elephant and the tiger. , And the list goes on.
According to their diet
Where animals are divided according to the food you eat to:
.Herbivores: animals that feed on herbs such as rabbits, and livestock.
.Cattle: Animals that feed on meat or other animals such as a lion, and a tiger where they feed on animals after they are caught.
.Multiple animals source food: where they eat meat, grasses, and insects, which are a little like starfish.
By the presence of the spine
There is a classification of organisms in general, which is by the presence of a spine or not, and similarly there are vertebrates and animals not vertebrate. Vertebrates are animals that have a spine and are divided into five groups:
.Birds: They live on land with feathers, some have the ability to fly, the air breathes from the lungs and the reproductive process is eggs like pigeons, peacocks, penguins.
.Reptiles: are animals that live on land and there are varieties living in water, and covers the body skin, and multiply with eggs such as the snake, and crocodile.
.Amphibians: Animals that live on land and in water, breathe from their lungs on land, and from gills while in water, and multiply eggs like frogs.
.Fish: Animals living in water breathe through gills, the way eggs reproduce, such as: ornamental fish, sharks.
.Mammals: What distinguishes them from the rest of vertebrates is the method of reproduction; they multiply by birth, and live on land or in water, such as lion and giraffe.
Invertebrate animals
.They are animals that have no spine. They are much more than vertebrate animals, accounting for 97% of all animals, and are divided into many groups such as sponges, mollusks, worms, and many animals, so they have their own knowledge under which many branches fall.
.It was a means of transportation in the foot like a horse, and a source of food such as chicken and livestock, has hunted the human to benefit from her skin like a tiger to make shoes and this threatens some animals to extinction, and there are animals extinct millions of years ago, such as dinosaurs, and Scientists are looking at the nature of these animals, trying to track the effects to show them why they are extinct.