SEQUOIA NATIONAL PARK, California (AP) — High in the evergreen canopy of General Sherman, the world’s largest tree, researchers searched for evidence of an emerging threat to giant sequoias ...

But a few dozen of its neighbors have taken ill and died in recent years under threat from drought and bark beetle infestations, so on Tuesday the giant sequoia known as the General Sherman tree ...

The world's largest tree has officially been scaled by climbers for the first time ever. Researchers on Tuesday made their way to the top of General Sherman, an ancient icon that stands 275 feet ...