Why is it important that billions of spatulae come into contact with the surface the gecko is climbing?

Billions of spatulae on a gecko's feet increase surface area, allowing for stronger van der Waals forces between the gecko and the climbing surface. This microscopic structure enables geckos to adhere to various surfaces without the need for moisture or sticky substances. As a result, they can climb efficiently on walls and ceilings, aiding in their mobility and survival in diverse environments. This unique adaptation is a fascinating example of evolutionary Biology in action.