The site navigation utilizes arrow, enter, escape, and space bar key commands. Left and right arrows move across top level links and expand / close menus in sub levels. Up and Down arrows will open main level menus and toggle through sub tier links. Enter and space open menus and escape closes them as well. Tab will move on to the next part of the site rather than go through menu items.

The Buzz

Quiz: How Savvy Are You About Snowy Owls?

(Photo via Shutterstock)

Because of their stunning, snow-white plumage, spotting a snowy owl can be a memorable occasion. But their white feathers aren’t the only thing that set them apart from other owl species.

Take this quiz to see how much you know about this treasured species.

Note: If on a mobile device, click here to take the quiz.

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Test your knowledge on this 10-question quiz.

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Rabbits are well-known for their ability to reproduce, but what makes them more prolific than other animals?

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Eyes To The Skies For Mercury's Elongation East of the Sun


The evening of June 4 provides an opportunity to view Mercury just after the sun sets.

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