The world is full of mysterious creatures, they constantly surprise humanity. There are many kinds of animals that strike with their uniqueness.
There are such groups of animals:
Many groups of pets became humanbecause without them he does not represent his life. But there are wild creatures that people can never tame. By the way, the first animal that was subordinated to a man was a wolf. It happened about 15 thousand years ago. He became domestic, eventually evolved into a dog. Now this is the man's best friend.
A certain group corresponds to different beings. The animal world is diverse, therefore each classification has its own characteristics. Namely:
You can divide the animals into groups according to the methodpower supply. There are herbivorous living things. They feed on leaves, seeds, fruits, roots, etc. Their oral apparatus has its own characteristics: they have more horny plates or incisors, molars. Nature thus created a device for grinding food of vegetable origin. But aphids, bugs, cicada have sucking apparatus, which gives them the opportunity to eat the juices of plants. In the digestive tract, additional departments are developed, such as a scar, a cecum. They allow you to process fiber. Herbivorous mammals have peripheral vision. Such animals have a muscular system rather coarse and not as developed as in predators of the same group.
Isolate animal predators that feed onother creatures. They have the skills to attack the victim. Of all the teeth, the fangs are considered to be the most developed, this difference is observed in mammals. The crocodile has an elongated mouth, and the shark has a number of rows of teeth directed inwards. Birds of prey have developed and sharp claws. Predatory mammals have good visual acuity. Attack the victim carnivores in a special way: they wait, they make a sharp jerk. They are hardy, have exact coordination, very fast.
In a special way the starfish destroys the enemy. She crawls into the mussel, waiting for the time when the sashes open, and then injects the enzymes into the sink.
But woodpeckers eat larvae of insects that liveunder the bark of trees. To do this, they have a strong large beak, special paws, with which the birds keep firmly on the tree trunk. To every creature, nature has created certain adaptations, with the help of which it is possible to obtain food.
There are groups of animals that eat leftoversorganisms. A vivid example can be bird scavengers. They have a long neck, a narrow muzzle, a good sense of smell. But, for example, the food of larvae of flies is the organic remains of plants and animals.
One of the groups is isolated by parasites. They feed on the tissues, the juices of their host. They are also adapted to their environment, since 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. These categories are divided into:
Parasites are usually such animals:
Also there are groups of animals by the method of nutrition,who eat food of plant and animal origin. They are called omnivores. They are endowed with features that resemble both predators and herbivores. Such animals are bears, crickets, rats. Among the reptiles here include geckos, agama and other reptiles. This group includes a person.
There are some facts that amaze many people:
Classify all the entities in the world and you canother criteria. For example, groups of animals that are dangerous to human life are isolated. At first glance they may seem harmless. Such an animal is a mosquito. He is a carrier of malaria. The insect infects the infection through the blood. About 2 million people die each year from the bites of these animals.
Replenishes lists of dangerous living beingsAustralian jellyfish. She has very long tentacles, which reach 4 meters. Their number at the same time is 60 pieces. At the same time, a jellyfish is capable of killing 60 people. And many other animals are dangerous to humans.
So, to determine which group of animalsrefers to a particular creature, simple. The main thing in this case is to know the criteria for grouping. After all, animals are divided by place of residence, food, classes, species and other factors. Each living creature is adapted to its habitat, has its own characteristics, eats different foods.