Do Fish Drink Water?

The video explains how different fish species manage water and salt balance in their bodies. Freshwater fish have a higher salt concentration in their bodies than in their environment, allowing water to flow in naturally. They use chloride cells to regulate salt intake. Saltwater fish face the opposite challenge, as the surrounding water is saltier than their bodies. They drink water and use chloride cells and kidneys to expel excess salt. The video highlights the importance of osmosis and chloride cells in maintaining homeostasis in fish.

What new insight or understanding did you gain from this video?