The red lionfish (P. volitans) is a voracious predator in the Atlantic Ocean but furtive in its native Pacific. A new study shows evidence of rapid evolution when it arrived in the Atlantic. Credit: Michael Gäbler published under a Creative Commons license. ================================================================= What makes the red lionfish (Pterois volitans) such a successful and powerful invader in Atlantic Ocean waters compared to its rather lamblike existence in its native Pacific Ocean? A new North Carolina State University study examining two native lionfish regions in the Pacific and five invading regions in the Atlantic showed the greatest genetic similarities between lionfish...