Why do leopard geckos drop their tails and what is the reason behind this behavior?

Leopard geckos drop their tails as a defense mechanism when they feel threatened or stressed. This behavior is called autotomy, and it allows the gecko to escape from predators by leaving behind a wriggling tail that distracts the predator while the gecko makes its getaway. The tail will eventually regrow, but it may not look the same as the original tail.