“Home on the Remains” is episode seven of season two of Farscape.
Moya is docking at a mining camp in the corpse of a giant space creature that they have been directed to by Chiana, that she has visited before (and hat to depart from in a hurry; she is excellent at getting into trouble). Zhaan is extremely ill and, if she doesn’t get something to eat soon, she will die. Her sickness – which actually seems to be some sort of blossom – is affecting some of the others, too, as she is giving off spores. And Moya is also becoming affected too.
In order to buy food – meat – for Zhaan, they have to do some mining. For Zhaan needs animal protein, and that describes everyone else on board. Except presumably her, given that Zhaan is a plant. Does that make her a carnivorous plant?