Just Stop Oil protesters have thrown orange powder on the huge replica dinosaur the forms the centrepiece of the Natural History Museum.
The Titanosaur: Life as the Biggest Dinosaur exhibition was closed to the public on Thursday after the men, both medics, staged a protest beneath a 121ft replica skeleton.
Visitors watched on as Dr Will Stableforth, a consultant gastroenterologist, and Steve Fay, a physiotherapist, covered the gigantic model in orange cornstarch.
