Charles Darwin 1809-1882
Evidence
molecular evidence
how evolution has occurred
Compare the DNA base sequence
anatomical evidence
checking for common ancestry
Ex. : homologous structures
fossil evidence
Evolution
Mechanisms of Change
Artificial Selection
allowing only the plants and animals with desirable characteristics to reproduce
Natural Selection
Genetic Drift
a change in the gene pool of a small population that takes place strictly by chance
Genetic Variation/Gene Flow/ Migration
any movement of genes from one population to another
Mutation
a change in the DNA sequence
Work/ Achievments
found fossils of extinct animals that were similar to modern species
1881 The Formation of Vegetable Mould
1871 The Descent of Man
the Origin of Species (1859)
IV. all species have one common ancestor
many species result of DIVERGENCE made possible by ISOLATION
III. the primary mechanism for evolution was a process called natural selection
Ex. Darwin's Finches
III. Variation, naturally occuring
II. Competition between & within species
I. CHANGES in the environment
survival or extinction is determined by that organism's ability to adapt to its environment
II. evolutionary change was gradual, requiring thousands to millions of years
I. Evolution did occur
1854 Barnacles
1842 The Structure and Distribution of Coral Reefs
Life
1882 Death on April 19th
1859 Publication of The Origin of Species
1842 First unpublished ideas on Evolution
1839 marriage to Emma Wedgwood
stomach and heart problems due to overwork
1837 was elected to the Council of the Geographical Society
1831–1836 Voyage of the Beagle
expedition to chart the coastline of South America
1827 enrolled in a Bachelor of Arts course at Christ's College, Cambridge
joined the Plinial Society
a group of students interested in natural history
enrolled at the University of Edinburgh to study medicince
revolted by the brutality of sugery and neglected his studies
british naturalist
born Feb. 1809 died April 1882
