We tested the best dog collars for small and large dogs. Our top picks include nylon, leather, custom, reflective, waterproof, and LED collars.

Forget rhinestones. The D Diamond New York is redefining luxury pet jewelry with solid 18K gold and diamond dog collars that cost up to an eye-popping $80,000.

Dear Cathy, We got our two tabby cat sisters when they were three months old. They’ve always been very close – snuggling, sleeping and grooming each other. Two weeks ago, they were sitting together ...