The index of animals that are defined as megafauna, this is determined by whether they would survive a collision with a Toyota Prius. Any animal capable of surviving an impact with a Prius and doing more damage to the car is then defined as megafauna, examples include American Bison, Elephants, Rhinoceros, ect.
"My biology professor talked about various types of animals today and introduced us to the Prius Index."
by Burton-gator October 20, 2023