A study by Rusted and Coltheart (1979) examined the way good and poor fourth grade readers used pictured text to learn about physical features, behavior, and habitat of unfamiliar animals. Including pictures of animals in their environments along with the text resulted in better retention by both good and poor readers, over the use of text alone. It facilitated retention of all information by good readers, but only pictured information (i.e., recall of physical features) for poor-readers. Observations of good readers showed that they spent time initially looking at the pictures and rarely looked at them once they started reading. Poor readers, on the other hand, frequently moved back and forth between text and pictures. While the process data are not detailed enough to be definitive, they suggest that good readers may be using the pictures to evoke an "animal schema" that guided their reading and aided comprehension. On the other hand, poor readers frequently moved back and forth between text and pictures, maybe to facilitate the decoding of particular words and perhaps to aid in building a mental model of these unfamiliar animals and their habitats.