Well sea otters aren't really playful just seem like because they are nice natured animales. They normally live in small freshwater ponds and sometimes on the shores of saltwater oceans.
Ducks, otters
There are both freshwater (river otters) and salt water otters.
They are normally found in freshwater ponds and pools.
Otters in Missouri are found in most kinds of wetland habitats including streams and ponds.
seaweed and other plants
fish sometimes live in ponds, and otters
rivers,lakes,ponds,and water falls
In freshwater ponds, lakes and streams.
A vorticella lives in freshwater environments, attaching itself to substrates such as plants, algae, or debris. They can be found in ponds, lakes, and streams where there is plenty of organic matter for them to feed on.
Platypuses do not actually live in water at all. They dig burrows alongside the banks of freshwater creeks or rivers, or in the banks of freshwater ponds and billabongs. They live alongside any freshwater water source which also contains its necessary food supply. While they do not live in water, they have to hunt for their food in water.
Some examples of animals that live in lakes and ponds are fish, frogs, freshwater clams among many other animals.