In the animal world, it's rare for two mammal species to form a mutualistic relationship. It's especially rare for that to happen when neither species is a prim

As some warthogs spend a rainy day painting their kitchen, they make a mess and learn about mixing colors.

Thematic units designed to instill a curiosity to learn more about the world and simultaneously sharpen students' reading skills.

Dr. Bob and his wise canine, Hank, journey to the savannas of Africa to study the warthog. Think you know pigs? Think again! Readers may be taken off guard by w

Even the warthog's name suggests that it isn't one of the world's most beautiful creatures, and it's true. They have large flat heads covered with warts, and sh