A man was critically injured when he was attacked by a shark while spear fishing on Australia's Great Barrier Reef, an official said.

AN Australian toddler was attacked by a python which wrapped itself around his body and attempted to suffocate him, his terrified mother said, recalling his “blood-curdling scream”.

A 60-year-old woman jumped onto the back of a 14-foot crocodile, tackling it to free a man trapped in its jaws.