Disappearance

We saw this documentay on TV about people who volunteer, searching for other humans who have gone missing. I think this is a good thing. No dog should be without his or her human, because this human disappears. I just wonder whether they would search equally hard to find a missing dog. I suspect they would not, though nobody said anything about this in the documentary. Well, perhaps we will get to know, sometime, though I hope the effort will never be needed for missing dogs.