Is there a limit to how tall a tree can grow? For giant sequoias, research shows that there are physical limits imposed by gravity—trees struggle to get sufficient water up so high, leading to ...

How do you conserve an ancient wedge of giant tree? With solvent, buckets of conservation-grade resin and a lot of patience. Giant sequoias are among the largest organisms in the world. It took 12 ...

That is, this tree is so big you can scarcely look at it all. It has a name, the President, bestowed about 90 years ago by admiring humans. It’s a giant sequoia, a member of Sequoiadendron ...

A 200-year-old giant redwood tree in Swansea has been chopped down "by mistake" by a housing developer. The tree was planted by the land-owning family who created what is now Penllergaer Valley Woods.

In this photograph, I’m abseiling down from the canopy of a giant Taiwania tree — we call this specific tree Great White. I climbed it in late June in a forest at an elevation of 1,900 metres ...

The possible extinction of certain plant species because of over-harvesting has prompted forestry giant Sappi to embark on a campaign to save endangered trees. The Sappi Rare, Threatened and ...

This story appears in the September 2016 issue of National Geographic magazine. In 1915 Paul Popenoe gave 26 photos of giant trees to National Geographic. One of them was this shot mailed from San ...

Giant sequoia trees are thriving in the UK, growing at a similar rate to those in California, the trees' native home. Reaching up to 90 metres in height, giant sequoias (Sequoiadendron giganteum ...

but the tallest are the Redwood trees. The tallest of all the Redwoods is called Hyperion. This giant is nearly 400 feet high and is between 600 and 800 years old! It is growing in a national park ...

In our series of letters from African journalists, media and communication trainer Joseph Warungu looks at the power trees seem to have over Kenyan politicians. Governments are not always known to ...

We have moved two picks to the competition. We’ve set up enough artificial Christmas trees to know that there’s no single best artificial tree. They come in dozens of species, shapes ...