The term SLO-MO MAMMAL is a crossword solution that refers to the SLOTH, a mammal known for its slow movements. Sloths are arboreal mammals found in Central and South America, and they are known for their slow-moving nature and long claws. They are also known for their low metabolic rate and tendency to sleep for up to 15 hours a day. Sloths are herbivores, and they feed on leaves, buds, and fruits.