Fish, crayfish, turtles, mussels, otters, mink, nutria, snakes, herons, anhingas, osprey, bald eagle, salamanders, frogs.
seaweed has tiny air sacks in the plant that help it float. some animal adaptations are that sting rays have poison sacks for protection, whales have blubber, or a layer a fat, that keeps them warm...
i only know one.. which is the grass has adapted to try stop animals grazing on it..
hope lanigain
Aquatic grasses, algae, and phytoplankton