Charles Darwin's "Tree of Life" sketch is seen on a page of "Notebook B," one of the trove of Darwin documents that had been stored in the Cambridge University library until it went missing in 2001.

Notebook containing Darwin's original 1837 diagram of the Tree-of-Life, one of two such notebooks ... More believed to have been stolen in late 2000 or early 2001. Cambridge University Library ...

A thief may have stolen two of Charles Darwin's notebooks, including one containing his iconic 1837 "Tree of Life" sketch, according to Cambridge University Library in England.

Two notebooks, one containing Darwin's original 1837 diagram of the Tree-of-Life, are believed to have been stolen in late 2000 or early 2001 from Cambridge University library.

Two of Charles Darwin's most famous notebooks, including one that contains his "Tree of Life" sketch, ... 170 plans and drawings and more than 8,000 letters. In 2016, ...

The notebooks, estimated to be worth millions of dollars, include Darwin’s celebrated “Tree of Life” sketch that the 19th-century scientist used to illustrate early ideas about evolution.

The notebooks – one of which contains Darwin’s 1837 “Tree of Life” sketch – had been removed from the university’s special collections strong rooms, where rare and valuable items are ...