trees

Earth's first trees had hundreds of tree-like structures within them, making them exceedingly more intricate than the insides of modern trees, a new study finds.

Humans can be vegetarians, choosing to forgo meat, but what about trees? After all, trees need only soil, sunlight and water to survive, right?

California’s trees are dying at an alarming rate.

CT scans of "Lucy," a human ancestor that lived 3 million years ago, reveal evidence in the structure of her bones that suggests she climbed trees as well as a walked on the ground.

This powerful camera gives insight into the effects of climate change in Alaska’s Tanana Valley.

The Amazon rainforest is awash in different types of trees — almost 12,000 species and counting, a new study finds.

A massive tree in Malaysia recently found by conservationists may well be the tallest in the tropics.

Having a lot of green around your home might help you live longer, according to a new study of more than 100,000 U.S. women.

Trees made of hard and soft wood, or of hefty or slender cross-section, all tend to break at roughly the same wind speed, and a new study explains why.