How do fishes navigate in the ocean? Because the sea floor is also very deep in the oceans it becomes even harder for them to create a map of the ocean inside their head. For migrating from one ocean to another they definitely need some map in their head. Also not all fish have sonar plus it has limited range and it even makes the job harder as the entire body of water surrounding a fish is constantly evolving
How do they create this map of the ocean inside their head ?
In: Biology
What makes you think they need a map? All they need to know is how dep their food is likely to be at.
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