How do frogs hatch from eggs? Detailed answer

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How do frogs hatch from eggs? Detailed answer

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How do frogs hatch from eggs?

Although frogs live on land, many frog species venture into the water when it's time to lay their eggs. This usually happens in the spring. The frog looks for quiet corners near the very shore of a pond or a small lake, in shallow water. At night or early in the morning, the female lays a certain number of eggs, eggs. They are connected in a solid mass, resembling jelly, and attached to some plant in the pond.

One small frog lays two to three thousand eggs. Large - from 6 to 8 thousand. Each egg is round, black on top, light in weight, about 1,5 mm in diameter.

Freshly laid caviar is no more than a teaspoon in volume, but then it increases several times compared to its original size. After a few days or weeks, depending on the type of frog, the eggs burst and tadpoles emerge from them. They have a tail fin and gills. At first, the gills are on the outside of the body. But gradually they are covered with skin, and lungs are formed inside the body and other changes occur. Paws develop. The hind ones show first, while the anterior ones remain underdeveloped until the last stage of metamorphosis occurring with the tadpole. The tail is absorbed by the body and completely disappears by the time the tadpole turns into an adult frog, ready for life on land.

The full transformation of a tadpole into a frog takes a week if the weather is warm. In cool weather, this takes a little more than a week.

Author: Likum A.

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What Soviet song has been translated into dozens of world languages?

The song "Let there always be sunshine" was written in 1962 by poet Lev Oshanin and composer Arkady Ostrovsky. Tamara Miansarova became the winner of the international festival in the Polish city of Sopot with her, and the song gradually gained fame around the world. Now there are translations into dozens of languages: as in our country, children's choirs sing it especially often. And the Swedish group Hootenanny Singers, headed by the future ABBA member Bjorn Ulvaeus, simply stole this melody in 1964 and recorded the song "Gabrielle", where nothing was left of the words about the sun, sky and mother. The composition became a hit not only in Sweden, but also in many other European countries, as the group sang it in several languages.

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