Photos: Best of the West
Reindeer On The Roof
Entomologist Dave Kavanaugh, background right, dressed as Santa Claus, poses for reporters as two reindeer are shown standing in front of the Living Roof to promote the 'Tis the Season for Science exhibit at the California Academy of Sciences in San Francisco, Thursday, Nov. 15, 2012. The academy's green rooftop keeps the building's interior an average of 10 degrees cooler than a standard roof would. (AP Photo/Jeff Chiu)