Why do worms come up to the surface when they die?

Worms often come to the surface when they die due to their sensitivity to environmental changes, such as soil saturation or flooding. When the soil becomes too wet, they may be forced upwards to avoid suffocation in waterlogged conditions. Additionally, as they decompose, their bodies can be disturbed by soil movement, prompting them to rise to the surface. This behavior is not intentional but rather a response to their deteriorating environment.