A fire at a farm in Britain was started by pieces of a pedometer that passed through a pig's digestive system. Photo courtesy of North Yorkshire Fire and Rescue Service
Firefighters were able to extinguish the flames that had spread to four pig pens without any injuries reported to humans or animals.
An investigation of the blaze found a pedometer that had been attached to a pig to prove that it is free range had been eaten by other pigs.
The firefighters said the pieces passed through the animals' digestive systems and when they came out the other side, copper from the batteries reacted with the animal waste and caused a fire to ignite.
