Scientists have discovered that insects that bore into trees as long ago as 90 million years, or as recently as last summer, leave a calling card that's rich with information. A University of ...

Is it frothy flux, bacterial wet wood, pitch from the pinon pitch mass borer, alcoholic flux, the result of boring insects, a fungal root problem, or the result of stress? All those conditions are ...

SOME 50 million years ago, an ant was foraging on a tree trunk growing on what is now the Baltic coast of Russia. A trickle of resin oozing from the tree trapped the insect, killing it and sealing it ...

Bears that rear up to scratch their backs against a tree trunk smear themselves with pungent resin, possibly keeping bloodsucking parasites at bay. Brown bears (Ursus arctos) regularly scrape their ...