Kyle Chalmers keeps his crocodile in the garage. “Cock the Croc” is a baby freshwater measuring about 40cm. The species’ unique anatomical make-up means he cannot yet tell whether Cock is a male or female, but he does know that he/she is growing, and could reach three metres in adulthood. Chalmers estimates up to 500 reptiles have passed through this garage over the past five years. “At the moment,” he says, “it’s probably down to about 40 given...