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Title
A species of sea urchin, Moscow Moskvarium #240277055
Description
These are bottom animals belonging to the class of echinoderms. They live in almost all seas and oceans. The main condition for their existence is very salty water, therefore, in seas with a low salt content, such as the Black, Caspian and Baltic, they are practically absent. The most dangerous types of poisonous sea urchins are found in the tropical waters of the Atlantic, Indian and Pacific Oceans.