they preferred to go after cubs, but full-grown tigers have also been caught this way. Needless to say, these men were largely self-taught, and the learning curve would have been unforgiving in the extreme. Their courage inspired one tiger biologist to write, “No, the bogatyri [mythic Russian heroes] have not died out in Russia.” One of the last and most famous of the tiger catchers was Vladimir Kruglov, who learned the trade from an Old Believer named Averian Cherepanov.