By Rajni Pandey | January 28, 2025
Ever wondered if fish feel thirst like humans? Science reveals surprising facts about how fish stay hydrated in different environments.
Freshwater fish don’t get thirsty. They absorb water naturally through their skin and gills to stay hydrated.
Saltwater fish do drink water to combat dehydration caused by the salty environment, maintaining a water-salt balance.
Fish rely on osmoregulation to control water intake and excretion, ensuring their cells function properly.
Saltwater fish drink seawater but excrete excess salt through specialized cells in their gills.
Freshwater fish excrete large amounts of dilute urine to prevent excess water buildup in their bodies.
Fish don’t consciously feel thirst like humans. Their water regulation is automatic and driven by their environment.
Some amphibious fish like mudskippers may feel “thirst” when on land as they require moisture to breathe through their skin.
Understanding fish hydration helps in marine biology and aquarium care, ensuring fish thrive in their environment.