Lecture 2: Evolution recap Testing explanations for the diversity of life Descent with modification is testable and explains diversity Natural selection is the mechanism driving evolution 1 Diane FosseyBirute GaldakisJane Goodall Science strives to be objective 2 Alfred Russel Wallace (1823-1913) Charles Darwin (1809-1882) Jean-Baptiste de Lamarck (1744-1892) Erasmus Darwin (1731?1802) The idea of change over time was not new 3 wikipedia.com Lamarck hypothesized about the mechanism causing diversity Use and disuse Inheritance of acquired characters Innate drive towards complexity 4 What do we require of hypotheses? 5 Descent with modification is testable 6 Natural selection is testable 7 The Grants studied ground finches for decades 8