amphibians or amphibian - is unusual creatures that can live in water and on land.Among them are frogs and newts, there is even a unique axolotl - evolving very special way.Amphibians Animals (title) Russia will be listed below.What are the main groups of amphibians should know?
Tritons
This group belongs to one of the most well-known amphibians.Many amphibians are unfamiliar name townsfolk, but the word "newt" know almost everything.This creature with a long body and tail, flattened on the sides.They can live both in water and on land, preferring places with lush vegetation.Color newt may be different and is defined habitat.It is interesting that in the winter they are placed into hibernation.As soon as the temperature returns to a comfortable level, they wake up and are sent to breed by laying eggs in leaves of aquatic plants.Another interesting feature - the ability to restore lost limbs and tail.All of these amphibians, whose names may be different - the ordinary, comb, California - have some common features.So, before the mating season the males on the back there is a special build-up, and newts prefer to eat worms, crustaceans and larvae.They live in all temperate countries and are nocturnal.
Salamander
It amphibians, whose names have not heard unless the person completely indifferent to nature.They are present in the legends and myths of many nations, each receiving some unique features - immortality, the ability to survive in a fire blight of fruit trees and the products of the river and the people turns into a dragon ... In short, each country has its own fascinating history of salamanders.In a sense, they are justified: These amphibians really are poisonous and can be dangerous for some species.For example Who Ate such amphibian dog can get fatal poisoning.The poison paralyzes the salamander brain centers.His produce parotid glands, which protects from the amphibious assault.Not surprisingly, other names amphibians are associated with the tragic events which rarely: salamander really dangerous majority of the representatives of this class.
Frogs
Remembering what are amphibious animals, the name of the family can not forget.Frogs - tailless amphibians, which existed during the time of dinosaurs.They have an amazing anatomy, allowing them to live in water and on land.Tadpole is little different from the fish fry and adult frog - fully terrestrial animals.This metamorphosis of amphibians and extracts the data.Interestingly, breathing frog mouth, skin and lungs.They have a universal blood system with two divisions of the heart working in the water, and the left atrium, acting on the land.They show the most active at dusk, when it becomes cool, but very cold weather, they seek shelter in the winter and fall dormant on the bottom.The color is determined by the frog habitat, it features many amphibians.The names of these creatures are different: there are lake and forest there, but one thing unites them - the ultimate survival.That is what made them successful object for scientific experiments, which are devoted to the monuments frogs in Tokyo and Paris.
caecilians
This legless amphibians, whose names have not heard virtually none.Nevertheless, caecilians are very interesting.Ring folds in their skin strips resemble large earthworms.Some have scales, others eyes visible through the skin, in a word, caecilians look very original.They live in the tropics of Africa, Asia and South America, preferring moist soil or anthills.They eat invertebrates such as worms.Land caecilians lay eggs, and water - are viviparous.They are protected from the dangers of poisonous skin.Thus, we can say that caecilians - a little-known amphibians, names and photos are difficult to forget, they are so unusual and even bizarre.
Toad
This amphibian animal names and photos that are familiar to most people.But while many people do not distinguish them from frogs.Meanwhile toad - a separate family with its unique features.There are desert species that are active only in the rain season.From frogs toads are more short hind legs, which limit their jumping twenty centimeters, dry skin with warts and what water they can be seen only during the breeding season.They feed on these insects amphibians, molluscs and worms, therefore, contrary to stereotypes, may be useful for humans, destroying the garden slugs.Common toad on all continents, there are only limited in Australia.There lives a special kind of desert that has teeth and digs on dry periods in the hole by storing water in body cavities.
Axolotl
This other amphibians, animal names which almost no one had heard.Meanwhile, a unique look that does not need growing up.Axolotl ambistomy are the larval form, but for breeding they do not need it to go.They are characterized by neoteny - the maturity comes at the childhood.Axolotl, living in a comfortable environment, can not grow old at all, but the change in the situation may lead to becoming a ambistomu.Another interesting name.Translated from the Aztec it means "water toys" that perfect smiling muzzle this amphibian.
