Researchers found a hidden mathematical rule in tree-like art. Branch thickness follows a predictable ratio, making trees recognizable.

Botanists have found a stand of rare trees in Tanzania’s Zanzibar archipelago not known to grow wild anywhere else in Africa.

New research has revealed a quantity related to the complexity and proportions of a tree's branches that artists have ...

Black and white colourable poster featuring two hands clasped ... while others may say “Save image as” or “Save picture as”. Image featuring an orange background and two hands, richly decorated with ...