A study found that redwood trees have two different leaves that serve different functions. The peripheral leaf, left, focuses on photosynthesis while the axial leaf is devoted to absorbing water.

Wherever trees grow, sooner or later their leaves get wet. For trees in wet environments, this can be a problem if films of water cover their stomata. These tiny pores allow carbon dioxide to enter ...

In a large-scale study with almost 400 partners, researchers worldwide have collected data on tree species, to which scientists from Bayreuth have contributed their knowledge about the Kilimanjaro ...

Evolution has long been viewed as a rather random process, with the traits of species shaped by chance mutations and environmental events — and therefore largely unpredictable. But an international ...