Older than the dinosaurs: Lamprey fish return to UK rivers after 200 years

Ancient eel-like fish is reclaiming its former river strongholds as water quailty improves

An ancient fish blamed for the death of a king and served as a traditional royal dish is returning to parts of Britain where it has been absent for 200 years.

Lampreys, a Medieval delicacy and eaten in a scene of Games of Thrones, evolved almost 200m years before the dinosaurs but industrial pollution drove them out of many of Britain's rivers.