The term 'Ring-Tailed Critter' refers to two species of mammals, the raccoon (COON) and the COATI (COATI). Both species are native to the Americas and are characterized by their long, ringed tails. The raccoon is a medium-sized mammal with a grayish coat and a black mask around its eyes, while the COATI is a larger mammal with a brownish coat and a white-tipped tail. Both species are omnivorous and are known for their intelligence and resourcefulness.