The raccoon was brought from America and released in Azerbaijan, Dagestan, Kyrgyzstan, Kabarda and near Voronezh. The animal acclimatized well, but this did not bring much economic benefit – its fur fell greatly in price.
The American skunk was planned to be bred in Dagestan, Kyrgyzstan and the Transcaucasus, but it did not take root anywhere.
In 1941, speakers were brought to Kyrgyzstan from Siberia. Representatives of the marten family settled in the area near Lake Issyk-Kul.
In addition, Soviet scientists took care of the conservation of certain animal species. The Asian saiga was released to the islands of the Aral Sea, the mountain goat was brought to the Crimea. Sika deer, southern wild boar, muskrat, common squirrel and even mole were settled, it was settled in the steppe near Novosibirsk. All experiments ended successfully, the population was saved and increased.