Warthogs have inherited their name due to the big wart like bumps that they have on their faces. The males get larger warts then the females especially close to their eyes, this is used to protect their eyes from another males tusks when they are fighting. You can see the difference between the male and female from the photo above, the female is on the left and the male on the right.
Warthogs are good at digging up roots and other food items but they don’t dig their own burrows. Warthogs will make use of burrows or tunnels made by other animals such as aardvark or porcupines. Sometimes sharing the burrow with one of these nocturnal animals as they are active during the day. When going into the burrow the warthog will go in bum first that way the head is facing the entrance, not only for a quick getaway but also so that its weapons (tusks) are facing the right way if needed.