Weed Creature
The weed creature was an intelligent, semi-mobile form of parasitic seaweed that inhabited the North Sea near the coasts of England.
Biology
Weed creatures fed on natural gas and generated massive amounts of foam. They possessed stingers which infected any human who touched them, allowing the weed to mentally control them. Both the weed and infected humans could produce poisonous gas. The weed reproduced rapidly and possessed a nerve centre; it was vulnerable to oxygen and high-pitched sounds. (TV: Fury from the Deep)
History
The Seventh Doctor once described the weed creatures as "primeval", existing since the days of the dinosaurs in Loch Ness. (PROSE: Christmas on a Rational Plane)
In the late 20th century, a weed creature was sucked up by an off-shore Euro Sea Gas rig, and, in the space of a few days, took over the crews of the off-shore rigs. It later took over Oak and Quill, two engineers at the refinery commanded by John Robson, and used them to commit various acts of sabotage around the refinery. It also took over Maggie Harris, Robson and Van Lutyens.
The weed's plans to conquer Earth were defeated when the Second Doctor used a recording of Victoria Waterfield's screams to destroy its nerve centre. (TV: Fury from the Deep)
John Smith mentioned "intelligent seaweed" to Joan Redfern, which she found amusing. (PROSE: Human Nature)
