Christmas

By Amanda McCorquodaleFor Christmas a few years ago, Tami Hawley’s brother gave her a 23andMe kit, a life-changing gift that ultimately connected her to the son she’d given up for...

A team of researchers from UC Davis have found seven genetic markers for Douglas fir trees, one of the more popular Christmas trees. The frequencies for these markers vary with location across the Pacific Northwest, and are associated with cold-hardiness.