Have a good look at the image (click to enlarge).
It is a snake who managed to kill a frog, but the frog is to big to swallow. I am not sure. The poor frog for being eaten or the poor snake for not being able to swallow the frog.
The ranger next to me and I we unsure and what would happen, but we agreed that maybe a bigger snake will come and eat both of them 😉
BTW This is picture is taken on Table Mountain Road so just above the Cape Towns City Bowl. Nature is so nearby in Cape Town.
And I have no clue what kind of snake it was….