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Interesting facts about the American Ridgeback

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We found 15 interesting facts about the American Ridgeback

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An ugly, clumsy frog with a triangular head, motionless eyelids and a pair of tentacles on its mouth, which draws attention to its unusual method of reproduction.  

It has no teeth or tongue, its nasal openings are located at the end of its mouth, but it is an excellent mother and protects its offspring by keeping them under special valves on its back.

It is easy to breed and is recommended even for beginner terrarium keepers, but it is not the cheapest frog - even the smallest specimen costs up to several hundred zlotys.

1

The American dorsal amphibian is a tailless amphibian that belongs to the family of dorsal amphibians.

The dorsal family includes 5 genera and 33 species.

2

The body shape is awkward, flattened in the dorsoventral direction - reminiscent of an angular flounder.

Its weight does not exceed 500 g. The muzzle is pointed, the body is wide and square in shape. He has no tongue or teeth – looks for food on the muddy bottom, turning over the mud with its front paws. The external nasal openings are located at the end of the snout. His eyes are small, widely spaced, directed upward and located on the edge of his head. It has a large mouth ending in a pair of tentacles. Its limbs are thick and strongly muscular, ending in thin fingers with thread-like appendages (stellate organs), which facilitate spatial orientation and help sense invertebrates buried in the mud. The toes are connected by a membrane that allows them to swim. 

3

Its color does not attract much attention. It is usually yellow or olive drab in color.

The skin on the back is spongy, wrinkled, with dark spots and tiny warts.

4

The body length of the American dorsal is from 105 to 171 mm.

Females range in size from 105 to 171 mm, males from 106 to 154 mm.

5

It lives in the northern part of South America, from the island of Trinidad, across the Guiana Plateau to the northeastern border of Peru.

6

The habitat of spinal monkeys is exclusively water - they never go onto land.

They inhabit shallow coastal parts of rivers., their tributaries with a calm flow, densely overgrown with vegetation, backwaters and oxbow lakes. They can also be found in swamps or muddy drainage ditches. During the rainy season, they move between bodies of water, without leaving the water when the area is flooded with rainwater. They can live in low-oxygen waters but are sensitive to chemical pollutants.

7

American watercress feeds on all small aquatic organisms.

It hunts primarily on invertebrates, especially insects and their larvae, which it digs out of the mud with thin fingers and quickly places in its mouth.

8

The flattened shape of the back is a natural adaptation to reproduction.

9

The American redbreast's mating season is during the rainy season. 

During the mating season, females emit a specific smell that attracts males, and males make a sound reminiscent of a clock ticking. 

10

The mating cycle lasts only XNUMX hours.

Full development of the eggs and their transformation occurs in the skin on the female's back. One egg has a diameter of 6–7 mm, each female lays from 40 to almost 500 eggs.

11

The mating season of royal birds is very spectacular.

Persons associated with comprehensively (a sexual reflex that occurs in tailless amphibians) perform somersaults, each of which lasts several seconds. At a certain phase of this figure, the female lays eggs, which are immediately fertilized by the male and attached to the female’s back. The female's skin, rich in blood vessels, creates special pockets around the attached eggs. After 10 days, the eggs are completely covered with skin and develop in closed pockets at a depth of 15 mm.

12

Only eggs laid on the female’s back can develop; those that sink to the bottom of the reservoir die.

In the first days of development, some of the eggs, shallowly embedded in the female’s skin, are pushed out by eggs located deeper in the skin.  

13

The incubation period lasts approximately 130 days. 

After this time and complete resorption of the tail, the cubs leave the pockets in the mother's skin. First, they tilt their head or limbs for 1-2 seconds. After this time, they climb to the surface of the water and begin to live independently. It is likely that by making movements that strain the back muscles, the female helps the young to escape.

Soon the female molts, and her skin becomes smooth again, and the remains of nesting lesions disappear.

14

Young spinal rodents reach the size of adults only after several years of growth.

The back of the body of young individuals is uniformly gray and only after a two-week period does the dark pigment become concentrated. 

15

It is believed that the female receives special stimuli from the cubs that help distinguish them from other creatures.

It has been noted that in adult owls the strongest food stimulus is the presence of a moving object touching their legs or head area, which the owl catches with an energetic movement of its mouth. However, it was not observed that young individuals that stimulated the mother in this way were eaten by her. 

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