Most importantly, they are the only tigers that live in cold weather. To help keep warm, their light yellow hair coat is long and thick, and their feet are heavily furred to help them walk on the snow. Tigers that live in warmer climates have darker, much thinner hair coats. It is believed that the ancestors of all tigers originated in Central Asia, not far from the present distribution of Siberian tigers. From there, they divided into present day sub-species and migrated over time to more tropical settings.
Tiers are the only cats found in the wild that have stripes.
Although they share a number of behaviors with our own domestic cats, tigers cannot purr. They can only roar. It is an intense study of the ecology and conservation needs of the Siberian Tiger in the Russian Far East. Tigers are very secretive, so to gather the information needed a technique called radio-telemetry is used. The scientists then spend years following each individual tiger's radio signal, learning everything they can about them.