The Jack Russell Terrier is a small, compact agile, brave terrier, who is good at hunting small animals like foxes and raccoons. Like other terriers they may bore easily and are capable of inventing their own entertainment. Jack Russell Terriers are a tough little dog who is clean and a convenient size for a companion. These friendly dogs are bold, athletic and clever. They are game hunters, tenacious and courageous at work, and at home they are playful, exuberant and overwhelmingly affectionate. This breed is an independent and energetic terrier and requires their due portion of attention.