* Long trunk: Mastodons had long, muscular trunks that they used for breathing, smelling, and grasping food. Their trunks were also used for drinking water and bathing.
* Tusks: Mastodons had two long, curved tusks that grew from their upper jaws. These tusks were used for defense and for digging up food.
* Thick skin: Mastodons had thick, leathery skin that helped to protect them from predators and the elements. Their skin was also covered in hair, which helped to keep them warm in cold weather.
* Large teeth: Mastodons had large, flat teeth that were used for grinding up plant material. Their teeth were constantly growing, and they could wear down as much as 1 inch (2.5 centimeters) per year.
* Long legs: Mastodons had long, powerful legs that allowed them to walk long distances and carry their heavy bodies. Their feet were also padded with thick, leathery skin, which helped to protect them from the rough terrain.