2chapter15

Chapter 15Chapter 15

Darwin’s theory of evolutionDarwin’s theory of evolution

Voyage of the BeagleVoyage of the Beagle

Charles Darwin had a 5 year trip on the H.M.S. Beagle in 1831, he made discoveries and formed the Evolutionary theory.

Charles Darwin had a 5 year trip on the H.M.S. Beagle in 1831, he made discoveries and formed the Evolutionary theory.

QuickTime™ and aTIFF (Uncompressed) decompressor

are needed to see this picture.

What Darwin SawWhat Darwin Saw



On the Way HomeOn the Way Home

During the trip home, Darwin studied his findings and discovered that the birds and tortoises may have been the same species at one time.

During the trip home, Darwin studied his findings and discovered that the birds and tortoises may have been the same species at one time.



Acceptance of Darwin’s TheoryAcceptance of Darwin’s Theory It was hard for

people back in Europe to accept Darwin’s theory.

It was hard for people back in Europe to accept Darwin’s theory.



Hutton and LyellHutton and Lyell

After studying the earth, they concluded that it slowly changes over time and that it is millions of years old rather than 6,000.

After studying the earth, they concluded that it slowly changes over time and that it is millions of years old rather than 6,000.

The Wrong Theory of EvolutionThe Wrong Theory of Evolution Lamarck thought that if an animal used or

didn’t use an organ, that it would change to adapt and passed on these traits.

Lamarck thought that if an animal used or didn’t use an organ, that it would change to adapt and passed on these traits.



Thomas MalthusThomas Malthus

In his Essay on the Principle of Population, he believes that we will run out of room on earth because of the growing population.

In his Essay on the Principle of Population, he believes that we will run out of room on earth because of the growing population.



Natural Variation and Artificial SelectionNatural Variation and Artificial Selection Darwin concluded that there are differences

within a species, and that breeders used variation to develop stronger crops.

Darwin concluded that there are differences within a species, and that breeders used variation to develop stronger crops.



EvolutionEvolution

The fossil record proved Darwin’s Theory of Evolution, homologous structures, early development similarities, and geographical distribution

The fossil record proved Darwin’s Theory of Evolution, homologous structures, early development similarities, and geographical distribution



Summary of the TheorySummary of the Theory

The summary of Darwin’s Theory is… The summary of Darwin’s Theory is…





Technology

2chapter15