Amazon River land dolphin

The Amazon River Dolphin today has a dorsal fin, pectoral fin, and a blowhole. They can swim 35 mph, eat 53 different species of fish, and has the largest brain of any freshwater dolphin. It also weighs 400 lbs. Because of deforestation, there will be hotter temperatures and different wind patterns. I think the rainforest rivers will dry up, and the dolphins and other sea/ water animals will have to adapt on land. If the dolphins reproduce with other rainforest animals, their babies could have legs and/or breath well on land. They would have claws or toes on their pectoral fins, so they could walk more easily. Their blowhole would probably be bigger, to get more air. Their dorsal fin would be smaller, so it could maintain stability. It will be difficult, but if they try hard enough, they can do it!