Four Legged Fish

For the present creature, I drew a normal fish with gills, scales, and a tail, swimming in its habitat, a lake in the rainforest. In this environment, there is enough water and space for the fish because of the constant rain in the rainforest. But in the future, as carbon rises, the climate gets warmer and there are less rainfalls in the rainforest, which leads to a drought in the rainforest. As time goes on, the water level goes down by a lot leaving the fish not enough space to live. It starts to develop small legs and small nostrils so it could start breathing in air. Its tail begins to shrink as there is not much use for it anymore. The gills and scales shrink as the new creature has to fight off the dryness of the climate.