What makes a single tree worth a journey is usually one of four things: extreme age, extreme size, an extraordinary shape, or standing somewhere nothing should. Here are sixteen.
1.…
There are a small number of biological rules that hold across every vertebrate: a spine, a heart, and haemoglobin to move oxygen around the body.
The last one has exactly…
The photographs are among the most striking images in science: a column of ash rising into the dark, with lightning threading through it.
The informal name is a dirty thunderstorm,…
Children ask why the sea is salty, and the standard answer — rivers carry salt into it and evaporation leaves the salt behind — is correct as far as it…
Few scientific ideas have travelled as far or as fast as this one. Trees, it is said, are connected underground by fungal threads through which they share nutrients, support their…
These are not hotels and not bothies. They are staffed, supplied, frequently by helicopter, and run on a set of shared conventions that are the same across most of Europe.…