Wired reports that the Giant Panda genome has been sequenced. These animals, so beloved of zoo visitors, lack genes for molecules that would enable them to taste meat, and also lack genes for molecules that would enable them to digest bamboo -- apparently, like termites, they rely on microorganisms in their guts to do most of the digestion.
Wired also reports on the warming effect of black carbon soot, which may be worse, in some places, than the effect of Carbon Dioxide.
From the National Science Foundation, a tour of the cell.
From the C. S. Lewis blog (about, not by, the late Lewis) some thoughts on how Lewis felt about Christmas celebrations and observances.
Image source (public domain)