Why Did Ancient Britons Stop Eating Fish

When cattle, sheep, pigs, and wheat arrived on the shores of Great Britain about 5,000 years ago, fish quickly fell off the Neolithic menu, according to an analysis of human bones scattered throughout the island.

The research helps resolve a debate over whether the adoption of domesticated plants and animals introduced to Great Britain from the European mainland was a gradual or rapid process, said Michael Richards, an archaeologist at the University of Bradford in England.