Humans use a part of their brain that dogs use when they look for their bones.
(I use the same part of my brain when I search for mine.)
But all kidding and bones aside, humans search for information, not bones.
This is a short entry, but so is the article.
Go ahead, read it.
You can find your bone later.
The last part in the above article is about how dogs can recognize faces of people and other dogs (I guess when they're not searching for their bones.)
IT'S ABOUT RENEWABLE RESOURCES AND BONES!