Our concept of life is too Earth-centric — alien life might look totally different
There are over 100 scientific definitions of "life," and none might be accurate outside Earth
Evolution is elegant but not when it's in David Sloan Wilson's hands
His new book "This View of Life" tries to wedge too much into one biological point of view
When finding a mate, intelligence matters to female parakeets
A new study finds that female budgies are attracted to smarter partners
Do animals hear music? "The Evolving Animal Orchestra" follows a decade on the beat
Macaques, chimps, and one very smart bird take Henkjan Honing down a winding path
Meet Ynes Mexia, late-blooming botanist whose adventures rivaled Darwin's
Eighty years after her death, scientists are still processing the plants she collected
Charles Darwin, made flesh and tedious
A new book humanizes the legend, but few will want to read it
Boobies of the Galápagos are replacing their disappearing food source with junk fish
Decades of research show how the sardine's decline threatens an entire ecosystem