Unlike what is shown here, male turtles actually have a convex plastron (that's the lower part of the shell). This makes it easier for them to mount the females during breeding. This is one of the least disturbing details of turtle reproduction. You do not, i cannot stress this enough, you do NOT want to know more, you particularly NEVER want to find out what an erect turtle dick looks like and how it is used. Consider yourself warned.
Unlike what is shown here, male turtles actually have a convex plastron (that's the lower part of the shell). This makes it easier for them to mount the females during breeding. This is one of the least disturbing details of turtle reproduction. You do not, i cannot stress this enough, you do NOT want to know more, you particularly NEVER want to find out what an erect turtle dick looks like and how it is used. Consider yourself warned.