Presentation on theme: "LECTURE PRESENTATIONS For CAMPBELL BIOLOGY, NINTH EDITION Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert."— Presentation transcript:
Figure 22.2 1809 1798 1812 1795 1830 1790 1809 1831 36 1844 1859 1870 Lamarck publishes his hypothesis of evolution. Malthus publishes “Essay on the Principle of Population.” Hutton proposes his principle of gradualism. Charles Darwin is born. Darwin travels around the world on HMS Beagle. The Galápagos Islands Darwin writes his essay on descent with modification. On the Origin of Species is published. While studying species in the Malay Archipelago, Wallace (shown in 1848) sends Darwin his hypothesis of natural selection. 1858 Cuvier publishes his extensive studies of vertebrate fossils. Lyell publishes Principles of Geology.
Figure 22.5 Darwin in 1840, after his return from the voyage The Galápagos Islands NORTH AMERICA ATLANTIC OCEAN PACIFIC OCEAN PACIFIC OCEAN Pinta Marchena Genovesa Equator Chile Santiago Daphne Islands Fernandina Isabela Santa Cruz Santa Fe San Cristobal Española Kilometers 0 20 40 Florenza Pinzón SOUTH AMERICA AFRICA EUROPE Great Britain HMS Beagle in port Equator PACIFIC OCEAN Malay Archipelago AUSTRALIA Tasmania New Zealand Brazil Argentina Cape Horn Andes Mtns. Cape of Good Hope
Figure 22.5a The Galápagos Islands NORTH AMERICA ATLANTIC OCEAN Chile SOUTH AMERICA AFRICA EUROPE Great Britain Equator PACIFIC OCEAN Malay Archipelago AUSTRALIA Tasmania New Zealand Brazil Argentina Cape Horn Andes Mtns. Cape of Good Hope PACIFIC OCEAN
Figure 22.5b Darwin in 1840, after his return from the voyage
Figure 22.5c The Galápagos Islands PACIFIC OCEAN Pinta Marchena Genovesa Equator Santiago Daphne Islands Fernandina Isabela Santa Cruz Santa Fe San Cristobal Española Kilometers 0 20 40 Florenza Pinzón
Figure 22.9 Brussels sprouts Kale Selection for leaves Selection for axillary (side) buds Selection for apical (tip) bud Cabbage Broccoli Kohlrabi Wild mustard Selection for stems Selection for flowers and stems
Figure 22.20 Other even-toed ungulates Hippopotamuses † Pakicetus † Rodhocetus † Dorudon Living cetaceans Common ancestor of cetaceans Millions of years ago 70 Key 6050403020100 PelvisTibia FemurFoot
Figure 22.UN02 Observations Individuals in a population vary in their heritable characteristics. Organisms produce more offspring than the environment can support. Individuals that are well suited to their environment tend to leave more offspring than other individuals. Inferences and Over time, favorable traits accumulate in the population.