The photo was taken in Namibia at Africat. I particularly liked how the hair and whiskers of the warthog matched the texture of the grass through which it was traveling.
Warthogs, like many other wild pigs, use their tusks and snouts to dig up roots for food. The warthog is considered one of the "ugly 5" animals in Africa (in contrast to the "Big 5 usually sought out by photographers)

Randy Roig
Panasonic FZ-1000