In Darwin’s geological footsteps

Charles Darwin’s musings on giant tortoises and mockingbirds are so well known that it is easy to forget he was, first and foremost, a geologist.During the five years Darwin spent on board HMS Beagle, more than three quarters of all the notes he took were about geological matters and geology \nwas a major concern in the five weeks that he spent in Galapagos in late 1835.