A 4-metre-long python was discovered dead in a Berlin park this week, prompting animal welfare advocates in the German capital to call for stricter regulations on exotic animals. The massive dead reptile was found in the busy Hasenheide park in central Berlin on Tuesday evening. Berlin authorities said they believe the snake is a tiger python. Authorities have not disclosed whether anyone in the area had a licence to keep such a snake, or provided other details on where the dead python may have come from. It was not immediately clear whether the snake died in the park, or whether someone dumpe…