Abstract: In a popular form, it tells about rare vertebrate animals included in the Red Data Book of the USSR, their biology, behavioral patterns, threats and measures being taken to protect them. Total number of snow leopard in the USSR is defined as 2,000 animals. 200 snow leopards live in zoos throughout the world. The animals successfully reproduce themselves in the Moscow, Kaunas, and Alma-Ata zoos. Snow leopard's maximum life expectancy in enclosures is 22 years.
