It turns out that it will take centuries for scientists to discover all the different species of trees.
For the first time, trees have been observed undergoing changes at night that can be likened to sleep.
A species of prehistoric marsupial lion was able to climb up trees and ambush its prey from above.
Something unusual seems to be happening to the famed Fortingall Yew - one of the oldest trees in Europe.
A new UK-based startup company has an ambitious plan to automate the process of planting trees.
The number of trees left in all the forests on Earth is now believed to measure in the trillions.
A remote area of woodland in Mexico is home to thousands of mutilated dolls hanging up in trees.
An appeal has been launched asking visitors not to screw small wooden doors in to the bottom of trees.
A bright object was filmed in the distance above the trees over the course of fifteen minutes.
The world's trees are thought to play an important role in preventing acute respiratory symptoms.
Researchers have discovered that crocodiles and alligators are remarkably adept at climbing up trees.
The San Lorenzo forest is estimated to be home to as many as 6,000 species of insect per acre of trees.
A new study has revealed that trees live perilously close to the limits of their inner plumbing systems.
If climate change continues then the Antarctic could be transformed in to a lush forest zone.
Parts of Antarctica would have enjoyed a warmer climate ripe with greenery around 15 million years ago.
Scientists in Europe are attempting to determine which trees will thrive during predicted climate change.
New research has challenged the idea that Scandinavian conifer trees all died in the last Ice Age.
New research has suggested Christmas trees may be responsible for a whole range of ailments.
Strange twisted trees found in Siberia's Kemerovo region are being hailed as evidence of Bigfoot.
Michael Cohen has obtained footage by two tourists showing a strange creature standing under the trees.