Reading Metrics
Grade Level
Lower Grades (LG K-3)
Book Level
3.5
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
896
Points per Word
0.000558
Page Count
24
Points per Page
0.020833
Description
When researchers heard that crows may use twigs as tools, the scientists knew they had to investigate. They created an experiment to see if their own crows, Betty and Abel, could make and use tools-and were shocked at just how smart these birds can be.