Do Fish Drink Water?

The video explores the water needs of fish, comparing freshwater and saltwater fish. Freshwater fish absorb water through their gills and must expel excess, while saltwater fish lose water through their gills and need to drink to stay hydrated. The video also touches on human water regulation for context.

What are the two types of water environments where fish live?

How do freshwater fish manage to keep the right amount of water inside their bodies?

What happens to saltwater fish as water flows over their gills?

What special system do saltwater fish have to manage salt intake?

Why do some fish need to drink water while others do not?