system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How come a Liger is larger on average than both a Lion and a Tiger despite being the product of them mating?
gpt
It's a genetics thing. Male lions have a gene that stimulates growth. Female lions have one that mitigates growth. Put them together and you get a normal sized lion.

However, female tigers don't have the same "Whoa, stop growing now" gene, so when a male lion and a female tiger mate, it produces offspring that just grow and grow (to a point at least).

Contrast this with tigons, where you have a male tiger and a female lion mating, and you end up with offspring about the size of a tiger.