Every tiger has three sons. What does it mean that every tiger has a tiger?

"If a tiger has three children, there must be a tiger" means that a tiger has three cubs, one of which must be a tiger. It is a metaphor for children's eccentric personality, or there must be a special personality style between people, which comes from "Returning to the Heart and Miscellaneous Knowledge" (continued): "As the saying goes, if a tiger gives birth to three children, there must be a tiger."

Legend has it that "Biao" is between tigers and leopards, and few people have seen it with their own eyes, but like Kirin, it is stored in various ancient books. The tiger is a variant of the tiger. It is bigger than ordinary tigers, fierce and brainless. If this sentence is used to describe people, it means that one of the brothers must be big, stupid, reckless and impatient.