This idea merges art with mathematics, offering a meditative drawing experience. 6. The Tree of Life Sketch the iconic tree ...

The small leather-bound books are worth many millions of pounds and include the scientist's "tree of life" sketch. Their return comes 15 months after the BBC first highlighted they had gone ...

Two of Charles Darwin-s notebooks containing his pioneering ideas on evolution and his famous “Tree of Life” sketch are missing, believed stolen, the Cambridge University Library said on Tuesday.