Rare Cornish bee could save dwindling populations from disease

A rare Cornish bee species could save dwindling populations from a disease that has wiped out millions of colonies worldwide, scientists have said.

New research suggests the Cornish Black honey bee is better at dealing with varroa mites, which carry a strain of a disease called deformed wing virus.

The virus has killed vast numbers of the world's bees.

Sarah Ransome reports.