It's probably not a question asked every day, but an udderly mooving study involving an Austrian animal had some surprising findings. That report -- plus a look at how Greenland was in focus at an international summit in Switzerland -- are two of today's topics on The World from A to Z. We're showing you an effort to revolutionize data storage, a gathering to celebrate tulips in the Netherlands, and caper involving a scholarly parakeet in Canada. Plus: a Constitutional quiz!