"I can’t pick a dog since mine passed. But if one picked me, I’d open my home again," said one TikTok user.

“Imagine if anything else mattered as much? I can’t," one social-media user wrote in the post's comments section.

Time shows up differently on dogs. The gray fur, the slower walks, and the quiet naps that seem to last a little longer each year. And that’s why moments like this clip hit people right in the ...