Fish have a special sense that tells them when to move. It's like having a little clock inside their bodies, and it helps them know when the time is right for a big journey. Some fish use changes in the water, like temperature or light, to decide when to leave home and go somewhere else.
Examples
- A fish feels a change in the water temperature and knows it's time to start its journey.
- Some fish follow the light from the sun like a guide on their trip.
- Fish remember the smell of where they were born, just like how people remember the scent of home.
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See also
- How Do Animals Migrate Across the World?
- How Do Fish Know Which Way to Swim?
- How Do Fish Know Where to Go When They Migrate?
- How Do Bees Know Where to Go?
- How Do Animals Migrate Across Oceans?
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