Frog, which makes for itself the water

Frog, which makes for itself the waterKorallovopalaya litoriya living in Australian savannas in the dry season drinking dew own making. Creeping out into the cold night air, and returning to a warm shelter, amphibian condenses the moisture on the skin surface, which absorbs and.

Frog korallovopalaya litoriya (Litoria caerulea) is living in a relatively arid Australian savannas, where, apparently, amphibians is not the place. The rainy season in these parts are replaced drought and frogs before there is a problem, as it did not really dry. Researchers from the University of Melbourne report that korallovopalaya litoriya found quite ingenious way out: she makes the water using liquid vapor condensation.

Like all amphibians, litoriya or drink by mouth, and absorbs moisture through the body surface. Alas, it is because of this absorbency of skin attached to the animals moist habitats: moisture as easily evaporate through the skin to the outside. But the nights during the dry season in northern Australia, where there is litoriya pretty cool: the temperature drops to 13? C. Despite the extremely low for her temperature litoriya selected nights in open space — the top knot of wood or termite mound — and spends outdoors for a while. Then returns to his refuge in some woody cleft, where the temperature can be as much as 10? C higher than outside, and the humidity reaches 90-100%. Physics does the job: the frog's body is covered with dew, which is then absorbed by the skin.

As the researchers wrote in an article in the journal American Naturalist, after spending 15 minutes in the cold night air, and after returning home, litoriya not absorb as much water, which is 1% of the weight of her body.

The fact that many animals can use the liquid vapor condensation, when there are no sources of water, the researchers guessed long ago. Back in 1969, in laboratory experiments on tarantulas, geckos and frogs have been shown that they can collect the dew on the surface of the body to drink. However, until now it was not clear whether the animals in the wild, this way of collecting water. Now, this question can be answered in the affirmative.

"Own" dew saves amphibian from June to August, and thus obtained the moisture does cover its costs by evaporation. Similarly, received some insects in the Namib Desert in northern Africa, who "caught" the morning mist. But, as the scientists, in this case it was possible to quantify the uptake of water frog and make sure that the animal is found to be the winner. Some zoologists, however, indicate that this method of obtaining water amphibian can be realized only in a fairly narrow temperature conditions: if there had been a little colder than the night or the day a little hotter — and amphibians have rushed to "invent" new technologies watershed.

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