Article headline is ridiculously overstated. How about: "Cat Parasite Has Some Odd Psychological Effects In People Who Are Infected By It, And So Probably Had

Article headline is ridiculously overstated. How about: "Cat Parasite Has Some Odd Psychological Effects In People Who Are Infected By It, And So Probably Had Some Minor Influence On Cultural Evolution, Which Isn't Really All That Surprising, If You Think About It".