Thirst is used to make an animal realize that it needs to replenish its bodily water by the body.
Common symptoms of dehydration are thirst, fatigue, headache, dizziness and dark, scant urine.
An animal needs to replenish its bodily water when it's dehydrated .
What is an animal experiencing when they need to replenish their body water?
Dehydration
vaporization
hypothyroidism
Hydration
evaporation
uncontrolled
Warmth
Hunger