Question: who is credited with linking characteristics of living organisms to past ancestors
[{'answer': 'Charles Darwin', 'provenance': [{'wikipedia_id': '5259', 'title': 'Common descent', 'start_paragraph_id': 3, 'start_character': 102, 'end_paragraph_id': 3, 'end_character': 116, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]