While nature can be stunningly beautiful, there are many aspects of it that generally go unseen and are downright gross.
A "giant red leech" filmed for the first time eating can be filed into this latter category.
The footage was taken for the BBC's "Wonders of the Monsoon" series. It shows the leech following the length of the 70 cm (about 27.5 inches) blue worm in search of an end.
"Then, it starts to suck," the narrator said of the event that was captured on camera at Mount Kinabalu on the southeastern Asian island of Borneo.
The scene gets tense when the worm realizes, already midway into the leech's body, that something is amiss and starts its other half writhing in an effort to fight back.
But make no mistake, "there is no escape," the narrator said.
"The leech sucks its prey down like spaghetti, crushing the worm with its muscular throat," the narrator added.
Watch the clip (Note: you might want to put down whatever you're eating before clicking play):
Paul Williams, the documentary's director, said the footage confirmed "the predatory behavior of a rarely-seen and unidentified species for the first time," the Daily Telegraph reported.
Ecologist Alim Bium told the U.K. publication that very little is known about the giant red leech, which in this case measured 50 cm (about 19.7 inches).