Adult animal Alert Animal theme Cautious Color image Common warthog Crater Cute Day Environment Extinct volcano Front view Full frame Full length Grassland Green Habitat Lookout Lush Medium shot National park Nature Ngorongoro conservation area Ngorongoro crater Ngorongoro district No people One animal Outdoors Phacochoerus africanus Photography Pig Plain Plateau Safari animals Safari park Savannah Solitude Steppe Stocky Survival Tanzania Tough Travel destination Tusks Vast Volcano Warthog Wary Watchful Wide Wildlife Wildlife refuge