trees

Wollemi pines — thought to have gone extinct 2 million years ago — were rediscovered in 1994. Scientists are now hoping to reintroduce the species in the wild in a conservation effort that could take centuries.

Rare tree fossils preserved with their leaves have an architecture unlike any plant known today and represent the earliest evidence of smaller trees growing beneath the forest canopy.

Fossils discovered on Barro Colorado Island suggest central Panama was once home to a vast mangrove forest that was preserved when a volcanic mudflow buried it 23 million years ago.

Plants draw on a suite of pigments to produce energy from sunlight, and in the fall, some become more obvious than others.

In a warmer and drier climate, the groundwater that fuels Yellowstone's tallest active geyser could dwindle, resulting in less frequent eruptions and even extinction.

Researchers are using sound to study Pando, the world's largest tree.

During thunderstorms, leaves from trees and other plants create mini electric discharges that can significantly alter the surrounding air quality. But researchers are unsure if this is beneficial or harmful.

Tree growth in temperate forests is driven by availability of water and not by temperature as previously thought.

Trees generally snap, or at least lose a few branches, when faced with hurricane-strength winds. Not palm trees. These staples of the tropics typically bend during gusty weather.