According to Guinness, the heaviest tiger in captivity was a male called "Jaipur", which weighed 465 kg (1025 pounds) at the end of his life in 1999. (This is also confirmed at website [1] below. )...
Estimates range from 500 to 550 animals.
A Siberian Tiger lives not only in Siberia but also Russia, China, and North Korea.
They were founded in Siberia, North and South Korea they were even founded in north china. Now there are some lefted among Amur river.
the fastsest tiger ever to been recorded is charlie wich was recorded in the kent zoo which speede up to 49.2 mph