The hippopotamus population has declined over the years. Climate change and human predators have caused their numbers to decline
. What adaptation could help prevent their future extinction? A) They only give birth to one calf every other year. B) Their large size makes them difficult to approach from a predators stance. C) Their feet have membranes between their toes making it easy to move in water. D) Their body is almost completely hairless except for a few bristles around their mouths.