WATCH: Rescuers free humpback whale from fishing line

Rescuers freed a humpback whale from a fishing line wrapped tightly around its tail off the coast of Australia — in what they described as the “most challenging operation of the season.”

​Rescuers freed a humpback whale from a fishing line wrapped tightly around its tail off the coast of Australia — in what they described as the “most challenging operation of the season.”   Rescuers freed a humpback whale from a fishing line wrapped tightly around its tail off the coast of Australia — in what they described as the “most challenging operation of the season.”