Tree of Life,' a Sitka spruce in Olympic National Park, is nearing the end of its life on the Washington coast.

From the genius and torment of Charles Darwin to the scientific revolution that spawned the tree of life, from the power of sex to drive evolutionary change to the importance of mass extinctions ...

“Lessons from The Tree of Life: Lighting the Path Forward,” is a new traveling exhibit created by The Tree of Life nonprofit and the Heinz History Center’s Rauh Jewish Archives. It opens Thursday, ...