Ranger Slothbones is a former park ranger that was fired in "Let's Get Tiny", his debut episode. He temporarily replaced Ranger Rhino as Banana's boss after Banana sabotaged Ranger Rhino's monthly cabin inspection. In "Cow Duck Avocado Mantis", he was a tram driver at Broseph Brothers Movie Studios.
Ranger Slothbones is extremely lazy, even to the point of Banana's surprise. He mostly spends his time playing video games and being lazy. He lets the Junior Rangers do whatever they want, including Banana. At first Banana loved him as his boss, but later began to miss Ranger Rhino. Therefore, Banana opened a jar containing a shrimp vortex, blamed it on Slothbones and got him fired, thus letting Ranger Rex give Ranger Rhino his job back.
Ranger Slothbones is a short sloth with brown and gray fur. He wears the same outfit as Ranger Rex and Ranger Rhino: A beige shirt and hat with dark green shorts.