Can dolphins or whales live in fresh water?
They don’t need to breathe in water so assuming they have enough prey I don’t see why the water’s saltinity affects them.
But then why don’t we have dolphins playing in the Mississippi river?
Can dolphins or whales live in fresh water?
They don’t need to breathe in water so assuming they have enough prey I don’t see why the water’s saltinity affects them.
But then why don’t we have dolphins playing in the Mississippi river?
Yeah from my brief reading it seems they can adapt to food salinity by altering their urine concentrations so I don’t think that’s a huge factor, at least it’s not something that comes into play before the other factors begin to harm them. But if you could fix their skin and buoyancy, diet may start to matter. But their prey is also a different salinity than the water it lives in a lot of the time, and sometimes they eat land animals like birds and such ofc.