Neotropical river otter

Over the next 1,000 years, I think the Rainforest will turn into a savanna. The savanna will have yellow grass, and few trees. The savanna has very small and few rivers, and some fish swim in them. The small streams are a good place for lots of insects, so the otters (Now Weasels.) will be eating insects. The current Neotropical Otter is brown. The color of the Neotropical otter helps it blend in with the river bank, and with logs in the water. The Otter is now yellow with stripes to blend into the savanna. The whiskers help the otter sense movements in the water. The Neotropical otter lost its whiskers because the otters no longer live in the water. The webbed feet of the otter were lost, and instead the otter got legs and claws to help the otters dig. The otter got larger ears for better hearing.