The intersection of humans and marine life is sometimes symbiotic, as seen in this video of a whale shark sucking fish through a hole in the net the way a kid sucks powdered-sugar candy from a pixie stix. Conservation International, which says this practice can be dangerous, filmed this video off Indonesia.

Whale sharks are the largest fish in the sea, according to National Geographic. Their favorite meal is plankton, which they scoop up while swimming close to the surface.

The sharks "often congregate around bagan (lift net) fishing platforms to eat the small silverside baitfish that the fishers are targeting," wrote Conservation International. Astoundingly, they have apparently taught themselves how to suck the fish through holes in the nets.

"The local fishers like the sharks, considering them good luck, and are working to modify the net designs to prevent sharks from entering," Conservation International said.