Paleontologists hope that an amber-like material, made with living tree resin, will shed light on the prehistoric ...

Workers use precision tools to tap into pine trees, allowing resin to flow without damaging their growth. At the same time, pine cones are carefully harvested and dried, releasing nutrient-rich ...

Amber and copal are fossilized tree resins prized for preserving delicate ... Saitta et al, Experimental maturation of pine resin in sediment to investigate the formation of synthetic copal ...

Only the sap wood of the tree is penetrated by this method ... great that within the next fifteen or twenty years the resin yielding pine forests of the South will be wholly depleted.