How do dogs see the world? They might not see as many colors as we do, but they do like to keep their focus on us.

Dogs are partially colorblind — here's what colors they can and can't see and how their vision differs from ours.

If you’ve recently noticed your dog is starting to hesitate on the staircase they’ve climbed a thousand times before or bumping into the living room furniture that hasn’t moved in years, it’s only ...