Snakes Use Their Spongy Mouths to Drink

The video explores the unique ways snakes drink water, focusing on two main methods: suction and sponge-like absorption. Initially, researchers believed snakes used suction by contracting mouth muscles, but later discovered that some snakes have sponge-like mouths that absorb water through capillary action. This adaptation likely evolved for eating but is also useful for drinking. The video highlights ongoing research, as scientists continue to study the variations in drinking methods among different snake species.

Explain the concept of exaptation in relation to snake mouth structures.

What are the current uncertainties scientists have regarding snake drinking methods?