Rabbits cannot survive in an aquatic habitat because they have
Rabbits cannot survive in an aquatic habitat because they have no gills.
Gills are specialized structures found in aquatic animals that allow them to extract oxygen from water. Rabbits, like most mammals, have lungs instead of gills and therefore need air to breathe. They are adapted to live on land and do not have the adaptations necessary to survive in an aquatic environment.
Without gills, rabbits would not be able to extract enough oxygen from the water to survive, and they would quickly suffocate. They are best suited to a terrestrial environment where they can breathe air and find food and shelter.