Table of Contents (click to expand)What Is Thirst?Aquatic AnimalsDo Fish Ever Get Thirsty? Fish don’t have to worry about getting thirsty because they live in water and can absorb water through their skin and gills. Seawater fish drink water to avoid dehydration, while freshwater fish don’t drink water because they have a higher salt concentration in their blood than in the water they are surrounded by. Freshwater fish don’t actively drink water by their mouth, because if they do, they run a high risk of having their blood diluted. However, seawater fish actively drink a lot of water to keep … Continue reading Do Fish Get Thirsty?