A clever whale shark has been filmed filching a free dinner by sucking hapless fish through a net and straight into its mouth.
The rare footage, which has received more than 1.5 million views on YouTube, was shot by the nonprofit environmental organization Conservation International in Indonesia's Cendrawasih Bay.
Researchers were looking to tag whale sharks, the world's largest fish, but they got an extra treat when they witnessed-- and filmed-- one of the filter-feeding fish sucking bait fish through a fishing net.
It's not only small fish that get sucked into the giant's jaws; according to Discovery News, a photographer nearly got swallowed by a whale shark near Isla Mujeres, Mexico last year.
But whale sharks don't eat or attack people; they are graceful, gentle giants.
Here's the video: