ReadWorks
Spinning
6. Read the first two sentences of the article: "On a spring night i
a small town in Kansas called Greensburg. Shortly before 10 p.

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.