Poison Dart Frog

My animal is called the poison dart frog. The frog lives in a tropical rainforest and (In my opinion) looks very cool!In the future he will grow horns so that when a predator tries to eat the cute little frog the horns will scratch the roof of the predator's mouth making the predator not want to eat the frog. Also the frog is bigger for expanded lungs so it can hold its breath longer. Alongside the webbed feet so it can run away from predators in the swampy muddy water. My prediction is that the tropical rainforest will become a swamp before turning into a savannah then a desert. Why? Because the forest will die and become a swamp because of lack of clean water. In conclusion the reason why the frog is so different from the present is because of survival.