Human: What are the differences between a tiger and a lion? Assistant: 
The main difference between a tiger and a lion is their size. A tiger typically weighs around 200-350 pounds, while a lion can weigh up to 550 pounds. Additionally, tigers have stripes that run down their back, while lions have manes or tufts of hair on their head. Tigers also tend to be more active during the day than lions, who tend to be nocturnal.