Photo: Comical Warthogs

1. Warthogs are diurnal. This means they are active during the day and sleep in big burrows underground at night.
2. Males have two sets of warts on their faces and females only have one set lower down on the face. The warts store fat and serve as protection when fighting, especially for males. Their name comes from theses big warts on their faces.
3. Running with their tails up is a follow-me sign, which makes it easier for the ones behind to see where the leader is going. As soon as the warthogs stop their tails go down.
4. To defend themselves, warthogs will use their tusks. The big ones you can see clearly on the top jaw will give a blunt force but the smaller ones in the bottom jaw are the really dangerous ones as they have very sharp edges. Every time a warthog eats they sharpen these smaller tusks against the bigger ones on the top jaw. You can see in Graham Harvey's gorgeous photograph that tusks are also used by males when fighting over females.
5. When warthogs enter their burrows at night the biggest and oldest one will enter last. They will also enter rear-end first so that their face blocks the burrow entrance. This is to protect themselves and their family.

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