This undated picture released by the National Science Foundation on Wednesday, July 11, 2012, shows a Caribbean fish known as French Grunt infested with the "Gnathia marleyi" parasite. Arkansas State ... more 

This undated picture released by the National Science Foundation on Wednesday, July 11, 2012, shows a Caribbean fish known as French Grunt infested with the "Gnathia marleyi" parasite. Arkansas State University marine biologist Paul Sikkel discovered the tiny blood-sucking marine parasite, a new species within the family of gnathiids, that infests fish on Caribbean coral reefs and named it after Jamaican reggae icon Bob Marley. (AP Photo/National Science Foundation, Elizabeth Brill) less