Why does the whale have a fountain? Detailed answer

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Why does the whale have a fountain? Detailed answer

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Why does the whale have a fountain?

Whales are not fish, but mammals. They are warm-blooded creatures, and their young are born by viviparity rather than hatching from eggs. Baby whales feed on their mother's milk, just like other mammals.

But the ancestors of whales, like all other mammals, lived on earth. Therefore, the whales had to adapt to the conditions of life in the water. This means that over millions of years, changes have taken place in their bodies that have given them the opportunity to live in a different environment.

Since whales do not have gills, they breathe with lungs, and their respiratory system has undergone the most changes in the course of evolution. Previously, their nostrils were on the front of the head, then they gradually moved up. Now they form one or two breathing holes that make it easier to get oxygen on the surface of the water.

Under water, the breathing holes are closed by two small valves, and since the air passage is not connected to the mouth, there is no danger of water entering the lungs.

Whales usually come up to the surface for air every 5-10 minutes, but sometimes they can stay underwater for up to 45 minutes! Having emerged on the surface of the water, the whale immediately releases the used air from the lungs. When he does this, a loud noise is heard, audible at a considerable distance. And what does the whale fountain consist of? This is not water, but simply exhaust air and water vapor.

To completely change the air in the lungs, the whale starts up the fountain several times, after which it plunges deep into the water. Some whales are known for being able to dive to a depth of 600 meters! Sometimes large whales will raise their tails above the water or even jump into the air, leaving the surface of the water completely!

Author: Likum A.

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The Swedish research company The Nordic Society for Invention and Discovery (NSID) has announced a desire to create a device that will allow the owner of the dog to know what his pet is thinking.

No More Woof consists of an electroencephalograph, a decoder and a speaker. All parts are fixed on a special device that is put on the dog's head. The electroencephalograph reads the electrical signals from the animal's brain and sends them to a decoder, which matches the signal with a set of pre-recorded audio recordings. The appropriate audio recording is then played back on the speaker.

According to NSID representatives, they have learned to recognize the electrical signals responsible for hunger, fatigue and curiosity. When pets feel hungry, the speaker will play "I'm hungry," when tired, "I'm tired," and so on. The company claims to be able to recognize other signals, but did not specify which ones.

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The company assures that not a single dog has been harmed and will not be harmed during the research, and also emphasizes that the project is at a very early stage, so for now there is no need to show any special expectations for it.

The authors of the project posted it on the Indiegogo crowdfunding site, hoping to attract funds from ordinary people to the project. The fundraising campaign started on December 16 and will end on February 14, 2014.

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