expensive to the owner of the slave if they were killed? >> right. the slave was killed you didn't want to pay the owner. it is a type of entertainment for the times. it was something people enjoyed and wanted to see. luckily we have more pass -- passivistic sports. it is a different in the way we view those competitions today and then. >> the emperors increased in 169 bc 63 african lions and leopards 40 bears el vanephants were hun down in a single two-day show. tigers crock piles giraffes they would bring them in from all over the world to kill them. the emperor would often kill them himself.