For the first time, the TV crew the BBC was able to record a huge red leech to devour a giant worm 70 cm in length, in the woods of Mount Kinabalu in Borneo island (Malaysia). The technique of bdellas is simple, looking for the edge of the worm and starts sucking like spaghetti until you swallow completely. The Kinabalu giant red leech is endemic to Kinabalu mountain and can reach 30 cm in length.