Ah, thank-you, I have now edited the title. My amphibian knowledge is extremely limited and I had not noted the species. I very nearly just captioned it "Bullfrog", but I googled both species and looked at their photos without coming to a conclusion. I then googled the zoo's collection and the website said it had the American Bullfrog so I went with that! The zoo must have both species. It is hitting myself with a ruler time.
