The tree of life may have sprouted from an ancient microbial merger, depicted here at the top of the ring. NSF Several theories compete to explain how eukaryotes arose.

Medieval stabbing victim found tangled in the roots of a fallen tree. September 15, 2015 More than 9 years ago. Just a human spine trapped in the roots of a tree, no big deal or anything.

COLLOONEY, Dublin — Archaeologists in Ireland discovered a human skeleton tangled in the roots of a downed tree. Using carbon dating, archaeologists determined the skeleton is that of a young ...