Fact 1: Thirst is used to make an animal realize that it needs to replenish its bodily water by the body.

Fact 2: Strong, persistent thirst can be a sign of dehydration.

Given the two facts above, answer the question "When do animals need to replenish bodily water?" with the following options: 
- during starvation
 - excretion
 - during hunger
 - during dehydration
 - they body they live in
 - during flood
 - excretory structures
 - recovery time from fatigue


 

    during dehydration     