Fiona Suthers, head of clinical skills at the university, says that five Labradors had a " stringent assessment" to ensure they had the right temperament.
Lesothosaurus is a small herbivorous dinosaur, it's about the size of a labrador, it's got a beak and horns on his cheeks, and mostly it was walking around on two legs.
The dogs - usually from the gundog breed, such as labradors and springer spaniels - are taught to detect a sample of urine from a patient with prostate cancer.