Red squirrels at a National Trust reserve in Merseyside have shown signs of resistance to the pox virus that has blighted the species, say researchers.
Scientists from the University of Liverpool have studied the squirrels at the Formby site for four years.
They found that 10% of its squirrels had pox antibodies in their blood.
These antibodies are chemical tags that allow the body to recognise and respond to an infection quickly.
This strongly suggests that the squirrels have encountered the pox virus previously and recovered from it.
Click "source" to read more.