NASA engineer Mark Rober just pointed out that statistically 6 percent of drivers are animal hating crazy people. Scientifically speaking, Rober was studying roadkill science.

For his experiment Rober planted rubber snakes, turtles and tarantulas on the shoulder of the road and then observed the actions of 1,000 vehicles, MSN reported. Rober found that 6 percent of drivers are -- "cold-blooded rubber-animal killers," and are willing to put themselves in harms way just to run over an animal on the side of the road.

MSN compared Rober's findings to a 2008 study that used the Psychopathy Checklist, which discovered that 1.2 percent of the US population were potential psychopaths.

Complex.com listed off a few more of Rober's findings including:

6 percent of motorists will swerve to run over an animal.

If you ignore the tarantula, 2.8 percent swerve to kill.

Nobody goes out of their way to run over a leaf.

89 percent of the people who did swerve to kill drove SUVs.

Check out Rober's full experiment video for NASA: