Marty’s photo of the day #4961: So, I shot green sea turtle porn while visiting the Galapagos Islands. Copulation can take several hours, with the female supporting the male’s weight and swimming to the surface for air. She’ll mate with multiple males over a two-week period and store their sperm for several months to fertilize multiple egg clutches. For me, the turtles’ expressions make this photo special—even if I’m unsure of how to interpret them.