Ruby Otter is a Maximal who works for Optimus Primal. Her beast mode is a red-furred River Otter Pup. She's Redotter Ruby River in Beast Mode. 's Sister and one of Tooth Paw's Friends. Retrieved from "https://beastwarstransformers.fandom.com/wiki/Ruby_River?oldid=46192" Categories: Otters Female characters Maximals Beast Wars E.N.D.A.N.G.E.R.E.D. Maximals Beast Wars Maximals Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.