How facial recognition could help farmers detect pigs' emotions.
A big day for the little piggies going "wee, wee, wee" all the way to the finish line.
Ali the 13-week-old pig kept sneaking into the lambs' pen and now thinks she is part of the flock.
Pigs in the Wood, in West Yorkshire, takes in pigs which have been abused or mistreated and nurses them back to health.
Police have been working to get the animals back into a field after their excursion blocked traffic.