Cynosura Capybara

My future animal is a new version of the capybara. It would be called a Cynosura Capybara (Cynosura means "big tail" in Greek). The Cynosura Capybara would be about 2 times the height of a normal capybara (about 4 feet tall)so it can swim or walk easier in deeper amounts of water, and would be a lot stronger than a normal capybara so it can fend off predators easily. It would have a long paddle-like tail that would be used to swim easier in deeper water, and large fully webbed feet and arms to make it even easier. Its fur would become a darker brown/grayish color to blend in more with the environment and many rivers in the Amazon Rainforest.