Dakota, a 3 ½-year-old Australian shepherd mix, bounced into the ring, her tail wagging. She poked her nose into a prickly straw bed and raced over a tall pile of rough bales. Then, darting toward a ...

When Jenna Walkling got her dog Torch in early 2020, the pup initially seemed to adapt well to his new environment. But over the summer, his behavior changed, and she started to get worried that the ...