Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
4.6
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
1637
Points per Word
0.000305
Description
Meet some of the amazing animals that live in the coldest parts of the world. Do you know which bird can survive in temperatures as low as -50°C? Or which animal walks 20,000 kilometres every year?