Male ligers are sterile, but female ligers are fertile and can be bred to tigers (resulting in ti-ligers) or to lions (resulting in li-ligers). Ti-ligers are more tiger-like, having a greater percentage of tiger genes. Li-ligers are more lion-like, having a greater percentage of lion genes. Neither are common. The fertility of hybrid big cat females is well-documented across a number of different hybrids. This is in accordance with Haldane's rule: in hybrids of animals whose gender is determined by sex chromosomes, the heterogametic sex (the one with two different sex chromosomes e.g. X and Y) is either absent, rare or sterile.

Little bit of friendly help to confusion about the REAL topic, maybe?

and to the monkey thing.....apes/monkeys are not anywhere near genetically compatible with humans......number of chromosomes doesnt match up.....if they did....or were close enough....then we would see a whole lot of monkey-people in africa, where some cultures still practice sex with primates