carlzimmer:
Monarch butterflies have suffered a 17-year decline. This photo shows them blanketing trees in northern Mexico during the winter. The patches of forest covered in monarchs have been steadily shrinking. See Science News for details.
(via Worries Grow Over Monarch Butterflies - Science News) - <a rel="nofollow" href="http://taoofcoffee.tumblr... ; title="http://taoofcoffee.tumblr... ;
