I think that the wall was one of three crocodile pits. There were a pair of Siamese crocodiles, a pair of Orinoco crocodiles and a saltwater crocodile and a Morlets crocodile. We were the first successful breeding of Orinoco crocodiles in captivity and one of the first captive breeding's of the Siamese crocodile. I have pictures of the neonate Orinoco's somewhere.