A disturbance in the forest

The forests of Scandinavia look beautiful in the autumn. What secrets do they hold? Color changes are beginning. The red coloration you see here is surprising, because it is mostly North American species that turn red – European species are overwhelmingly more likely to turn yellow. The explanation for this pattern remains a matter of…

X-rays and leaves

X-rays aren’t just for peering at broken bones. A few years ago I wondered if they could also be used to look at the structure of leaves – especially the venation network, which is the plant’s equivalent of a skeleton combined with a circulatory system. Looking at leaf veins with x-rays is an attractive idea…