January-February 2011 class notes and obituaries

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There’s a growing movement to curb light pollution. It starts on your front porch.

As weight loss medications become more common, Daniel Lieberman discusses the importance of preserving muscle.

An animal’s journey from grief to love shows how much humans need each other, too.

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Black and white photo of Joseph Murray in a white lab coat sitting in an office.

Nobel Prize recipient Joseph E. Murray dedicated much of his career to organ transplant surgery.

A chaotic scene in a messy room with people engaging in various activities, some cleaning.

Until the 1950s, professionals cleaned up after students in the dorms.

Graduates in caps and gowns celebrate joyfully, raising their hands in excitement.

Conan O’Brien headlines a star-studded cast