White female mice, that is. And they must weigh between 16 and 18 grams.
In a story that's circulating around the blogosphere, Russia's Federal Guard Service has placed an ad offering $20,000 for these mice, without specifying a reason for the request.
Theories have been proposed about the potential fate of the mice, ranging from falcon fodder to mini-spies outfitted with mini-cameras.
But why white?
I don't imagine a white mouse would make a good spy, as it would not blend in very well.
And why female?
Do falcons prefer the taste of female mice?
Is it for science or skulduggery?
Or is it just something to catch the interest of bored bloggers?