For decades, Tim says, scientists have been trying to learn where cockroaches came from. Now we know the answer; we created them in our own image.

The second theory is that the cockroach had a single-cell mutation early in its development. Researchers hope to get to the bottom of the mystery with the help of the global research community.

Palmetto bugs are large cockroaches that live in the American southeast. Learn more about palmetto bug traits, why you get them, how to get rid of them, and more.