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Polish animals can make amazing sounds. We know some of them well, we have heard them personally or from various accounts. However, there are also sounds that most of us have no idea about. They can be heard in a few places in the country, and only periodically. Despite everything, it is often easier to hear the sound of a rare animal than the animal itself. Acoustic natural science is a field that strongly affects the imagination, and at the same time one of the most interesting branches of natural science. Patronite: https://patronite.pl/magia_natury __________ The author of the channel does not claim rights to the materials used in the film. The materials are used under the law of fair use in order to illustrate, educate and better understand the issue or come from websites providing free materials.