"Kansas is not crowded. It ranks thirteenth among the states in size but only thirty-first in population. That leaves plenty of space for nature. Kansas is home to almost 800 kinds of vertebrates, including 141 species of fish, 32 kinds of amphibians, 14 types of turtles, 53 different reptiles, and 87 kinds of mammals. More than 450 different bird species have been seen in Kansas. More than 2,000 kinds of plants grow wild in Kansas, including 200 types of grass. You can see many of these plants and animals along I-70."