I posted a little thing about what it might be like to be the last Megalodon shark (She Had Always Been Different). Everything is biologically accurate for sharks (at least some species), from the rough mating to the in-utero cannibalism. Hybridization with a great white would not be unexpected for a closely related species with no other options. The ending was the first thing I could think of short of having an Ahab character kill her, but I wanted to keep humans out of it as much as possible.
The next Rolly chapters will be submitted on Friday evening again.