They prey. They hunt. They fight. But they also cuddle, huddle and try to find love. Although Siberian tigers can engage in reproduction throughout the year, most of the time it occurs from late November through early April. Here’s how they engage in the courting process at the Heilongjiang Siberian Tiger Park. The facility, in the northeastern Chinese city of Harbin, is the world’s largest breeding center of the endangered species, having bred over 1,000 of the big cats since its opening in 1986.