Can Dolphins drink fresh water?
As the other person said, there are a number of river dolphins. Usually salt water breeds don’t do well in fresh water though. And the salt water dolphins get the majority of their water from fish, etc… and their kidneys try to retain as much water as possible. Fish, such as herring and mackerel can be made up of as much as 80% moisture, while moisture levels in squid are even higher. In addition, dolphins don’t actually need to take in very much fluid because, unlike us, their skin is impermeable and they don’t lose water by sweating.
