The trees exchange carbon dioxide and oxygen with the atmosphere through little “mouths” in their leaves and tiny “windows” ...

Like the branches, twigs and leaves of a tree, fractals repeat the same patterns across different scales. Snowflakes, lightning bolts and human blood vessels are also fractal structures ...

When pruning it's essential to keep your secateurs sharp. Blunt tools can cause branches to tear, leading to wounds on the tree that will attract disease. It's also important to have a pruning saw ...

Of course, as phylogenetic trees branch, different lineages accumulate different traits. Figure 3 illustrates this idea using a clade that contains four lizard species. You can see that the ...