Terriers were bred to go to ground and hunt vermin such as rats, mice, foxes and badgers.
Terriers are extremely tough and brave and have great characters. They tend to be quite noisy and can be stubborn.
As part of her final year research project, one of my friends from the Royal Veterinary College is doing research into breed-related problems in dogs. If you own or have owned a dog, please fill in her questionnaire or visit the Facebook group.