The UA has plenty of special features to offer, but one of its more overlooked aspects is its abundant plant life—specifically, that of the Laboratory of Tree-ring Research. UA’s tree-ring lab right ...

Perhaps you’ve wandered through a forest or strolled into a neighborhood park and found tree trunks — and wondered if counting the rings on a trunk is truly a way to know the tree's age. "Most of us ...

Perhaps you’ve wandered through a forest or strolled into a neighborhood park and found tree trunks — and wondered if counting the rings on a trunk is truly a way to know the tree’s age. “Most of us ...

Tree trunks are more than just wood—they’re living records of everything a tree’s been through. From growth spurts to natural disasters, tree rings and dark lines inside trunks reveal secrets that are ...

Blue growth rings found in woody plant stems represent years when cells did not lignify properly because of summers too cold for growth When the going gets cold, even tough trees struggle with growing ...