Darwin from Descent of Man to Emotions under Domestication" which went on sale on 30 January 1868. He now published his ideas on human evolution and on how beautiful but apparently impractical features could have evolved in "The Descent of Man, and Selection in Relation to Sex". After revising "The Origin of Species" as the definitive 6th edition, his major works on species culminated in "The Expression of the Emotions in Man and Animals". This period was followed by extensive work on insectivorous plants and research into worms. Despite Darwin's concerns that his children were weakened as his wife Emma Darwin was his cousin or had inherited
Man of the Hole Man of the Hole Man of the Hole () is a nickname used by officials and the media to describe a man who is indigenous to Brazil and lives alone in the Amazon rainforest. He is believed to be the last surviving member of his tribe. It is unknown what language he speaks or what his tribe was called. The Man of the Hole's nickname derives from the deep hole found in each home that he has abandoned. It was originally believed that these holes were used to trap animals or for him to hide in, but some observers have