Here's why:
* Retractable claws: Domestic cats have retractable claws, meaning they can pull their claws in and out of their sheaths. This helps them keep their claws sharp and prevents them from being dulled or damaged when not in use.
* Non-retractable claws: Wild cats, like lions, tigers, and leopards, have non-retractable claws. These claws are permanently extended and never retract into sheaths. This is an adaptation for hunting and climbing, as they need their claws to be sharp and strong at all times.
Therefore, wild cats cannot extend their claws because their claws are always extended.