Bing announced they are rolling out a new tool named how-old.net directly into Bing Image search. It is a person image age detection tool that sometimes works incredibly well and sometimes not.
When you go to Bing Image search and find pictures of people, you may see this "HowOldBot" icon at the top right of the image. Clicking it will try to interpret how old the person in the picture is.
Here is an example of searching for images of Barry Schwartz, not me, the smart one:
Technically, I think this just works on Windows computers, at least for now, but I suspect it will roll out more broadly over time, if searchers like it.
Forum discussion at Twitter.