The case of a surgical implant found inside a Queensland crocodile has highlighted the challenges forensic scientists face when trying to identify human remains without much evidence to go on. Did the crocodile eat a human with a surgical implant? If so, could the implant — a metal plate and some screws — be used to identify the victim? Or did the implant come from a dog? Death by crocodile is reasonably rare. In the past decade, there have been about 67 crocodile attacks i