What are the different groups of animals?

world full of mysterious creatures, they constantly surprise humanity.There are many species that affect their uniqueness.

Classification

There are some groups of animals:

• Mammals.
• shellfish, echinoderms.
• Fish, Amphioxus, cyclostomes.
• Birds.
• Reptiles.
• Amphibians.
• Arthropods.

Many groups of animals became a human family, because without them he can not imagine his life.But there are wild creatures, tame that people will never succeed.By the way, the first animal that has subjected the man was a wolf.It happened about 15 thousand. Years ago.It became home, eventually evolved into a dog.Now it is a man's best friend.

How to identify groups of animals?

different creatures corresponds to a certain group.The fauna is diverse, so every classification has its own characteristics.Namely:

1. mammals are warm-blooded animals.They are covered with hair, they have heart quad, and mammary glands secrete milk.At birth they have a live calf.
2. Birds - a warm-blooded animals that lay eggs.They are covered with feathers and have wings, heart quad.
3. Reptiles - a cold-blooded animals.Their body is covered with scales, three-chambered heart, they lay their eggs.
4. Amphibians are cold-blooded animals also.The heart of their three-compartment, using the skin they breathe, their larvae live in water.After the egg shell is able to penetrate the water.
5. chordates include in its list of some fish species and organisms, such as fish.

Species living beings depending on food intake

can divide animals into groups by the method of supply.There are herbivorous creatures.They feed on leaves, seeds, fruits, roots, etc.Their mouthparts has its own characteristics: they have more horny plates or incisors, molars.Nature thus created a device for grinding plant foods.But aphids, bugs, cicada have a sucking device that enables them to feed on plant juices.In more developed parts of the gastrointestinal tract, such as tripe, cecum.They allow to process cellulose.Herbivorous mammals have peripheral vision.Such animals are quite rough and muscles are not as developed as that of the same group of predators.

There are animal predators that feed on other creatures.They have the skills attack on the victim.Of all the teeth are considered to be the most developed canines, such a difference is observed in mammals.At the mouth of the crocodile elongated and have a certain amount of sharks rows of teeth directed inward.Birds of prey have developed and sharp claws.Carnivorous mammals have good visual acuity.Attacked the victim carnivores in a special way: waiting, make a sharp jerk.They are hardy, have a precise coordination, very fast.

in a special way destroys enemy starfish.It creeps in the mussel, waiting for the time when the flaps open, and then injects enzymes into the sink.

But woodpeckers eat insect larvae that live under the bark of trees.To do this, they have a solid big beak, legs special which birds are kept firmly on a tree trunk.Each existing nature has created some tools you can use to gather food.

There are groups of animals that feed on the remains of organisms.A clear example can be carrion birds.They have a long neck, a narrow muzzle, a good sense of smell.Here, for example, fly larvae food is organic remains of plants and animals.

Another group isolated parasites.They feed on tissue, the juices of the owner.They are also adapted to their environment because their bodies are not digested in the body, in which they live.Parasites are very similar to predators, but they do not kill the host immediately.They use it as a place of residence.Separate these categories:

• microparasites;
• makroparazity.

Parasites are usually such animals:

• round and flat worms;
• insects such as fleas, mosquitoes, bedbugs, mosquitoes, lice, gnats;
• mites;
• crustaceans;
• Cyclostomes.

There is also a group of animals on the way of eating that eat the food of plant and animal origin.They are called omnivores.They are endowed with traits that resemble and predators and herbivores.These animals are bears, crickets, rats.From here reptiles include geckos, Agam and other reptiles.This group includes humans.

interesting information about animals from different groups

There are some facts that affect many people:

1. giraffe biggest size heart.This animal has a black tongue, whose length reaches 45 cm.
2. Bones from fish garfish - green.
3. cat is unable to move the jaws.
4. rhythm of the heartbeat of a whale is 9 beats per minute.
5. octopus have rectangular pupils.
6. registered a record flight of a chicken.He is 13 seconds.
7. muscles of caterpillars dominated by the number of men.
8. female armadillo able to prolong the pregnancy to 2 years if under stress.
9. Tit sometimes feed their young a thousand times a day.

Groups dangerous animals

classify all entities in the world can and other criteria.For example, there is a group of animals that are dangerous to human life.At first glance, they may seem harmless.That animal is the mosquito.It is a carrier of malaria.Insect infects infection through blood.From bites of these animals die each year about 2 million people.

Updates the list of dangerous living beings Australian jellyfish.She has very long tentacles that reach up to 4 meters.The number in this case is 60 pieces.Simultaneously, the jellyfish is able to kill 60 people.And many other animals are a danger to humans.

Conclusions

So, to determine which group of animals is a particular creature, simply.The key is to know what criteria grouping occurs.Because animals share the place of residence, way of feeding, classes, types, and other factors.Every living being adapted to their environment, has its own characteristics, fed with different food.