There's a new effort to determine why green sea turtles in the Indian River Lagoon are covered with tumors. Nearly half of the green sea turtles in the Indian River Lagoon suffer from the tumors.
Kate Mansfield of the University of Central Florida says the number and range of cases are expanding. But what’s causing them is a mystery. Mansfield says all of the turtles with the tumors have a certain virus, but not every turtle with that virus has tumors. So other contributors are suspected.