15 darwin’s theory of evolution (version 2)

CHAPTER 15 Darwin’s Theory of Evolution

15.1 The Puzzle of Life’s Diversity ,[object Object],[object Object],[object Object],[object Object]

Voyage of the Beagle ,[object Object],[object Object],[object Object]

Voyage of the Beagle ,[object Object],[object Object],[object Object],North America Europe Great Britain Africa Equator Asia Australia Tasmania New Zealand PACIFIC OCEAN ATLANTIC OCEAN PACIFIC OCEAN PACIFIC OCEAN The Galápagos Islands South America Tierra del Fuego Cape Horn Cape of Good Hope Andes Pinta Marchena Genovesa Equator Santiago Isabela Fernandina Florenza Española San Cristobal Santa Cruz Santa Fe Pinzón Daphne Islands 40 miles 40 km 0 0

Darwin’s Observations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Darwin’s Observations ,[object Object],[object Object],[object Object]

The Tortoises! ,[object Object],[object Object]

The Journey Home ,[object Object]

15.2 Ideas That Shaped Darwin’s Thinking ,[object Object],[object Object],[object Object]

Ideas That Shaped Darwin’s Thinking ,[object Object],[object Object],[object Object]

An Ancient Changing Earth ,[object Object],[object Object],[object Object],[object Object]

An Ancient Changing Earth ,[object Object],[object Object],[object Object],[object Object],[object Object]

The Understanding of Geology Influenced Darwin in 2 Ways ,[object Object],[object Object]

15.3 Darwin Presents His Case ,[object Object],[object Object],[object Object]

Evolution by Natural Selection ,[object Object],[object Object],[object Object]

The Struggle for Existence ,[object Object],[object Object],[object Object],[object Object]

Survival of the Fittest ,[object Object],[object Object],[object Object],[object Object],[object Object]

Survival of the Fittest ,[object Object]

Natural Selection ,[object Object]

Descent with Modification ,[object Object],[object Object],[object Object]

Hundreds to thousands of years of breeding (artificial selection) Ancestral dog (wolf)

Thousands to millions of years of natural selection Ancestral canine African wild dog Coyote Wolf Fox Jackal

A flower mantid in Malaysia A leaf mantid in Costa Rica

Evidence of Evolution ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

The Fossil Record ,[object Object],[object Object],[object Object]

A Skull of Homo erectus D Dinosaur tracks C Ammonite casts B Petrified tree E Fossilized organic matter of a leaf G “Ice Man” F Insect in amber

Geographic Distribution of Living Species ,[object Object],[object Object],[object Object]

Homologous Body Structures ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Similarities in Embryology ,[object Object],[object Object]

15 darwin’s theory of evolution (version 2)

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