d arwin : t he m an b ehind the t heory of e volution 7 th grade life science mr. p
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DARWIN: THE MAN BEHIND THE THEORY OF EVOLUTION
7th Grade Life Science
Mr. P
CHARLES DARWIN: THE YOUTH
He was born Feb. 12 1809 in England. He was the son of a well-known physician.
Darwin was kicked out of schoolbecause of his bad grades
Darwin’s mother died while hewas 8 years old
CHARLES DARWIN: THE MAN
He dropped out of medical school because he could not stand the sight of blood
He then pursued a life in the Church, but did not find it interesting
He became interested in studying beetles and reading scientific findings
CHARLES DARWIN: THE SCIENTIST
Charles Darwin sailed aboard the HMS Beagle. He was the naturalist aboard the ship, which sailed around the world.
He was horribly sea sick the entire trip
He stopped anywhere he could and made amazing discoveries
CHARLES DARWIN: THE SCIENTIST
He kept careful notebooks of the voyage and his findings
CHARLES DARWIN: THE SCIENTIST
CHARLES DARWIN: HIS VOYAGE
He made several stops, but he is most famous for his findings from an island off the coast of Ecuador named the Galapagos islands.
GALAPAGOS
GALAPAGOS
CHARLES DARWIN: THE SCIENTIST
On the Galapagos, he found diverse organisms, such as finches, which had different beak sizes for the different types of food they eat.
THE FINCHES
FINCHES….COMMON ANCESTOR?
CHARLES DARWIN: THE SCIENTIST
He also found different species of Tortoises, which had different neck sizes to reach different food sources.
CHARLES DARWIN: THE SCIENTIST
Once home, he looked at the data he collected and came up with his theory of Natural Selection in his famous book Origin of Species.
CHARLES DARWIN: THE SCIENTIST
Darwin also looked at pigeon breeding, which is a form of Selective Breeding and is the basis for how we breed dogs.
SELECTIVE BREEDING: DOGS
CHARLES DARWIN: THE LEGACY
Darwin’s theory of natural selection is the basis for modern biology and is the foundation of how we study nature.
REMEMBER: Evolution is CHANGE OVER TIME
THE INSPIRATION
While in the Galapagos, Darwin saw that the tortoises showed variation of characteristics.
THE INSPIRATION
Darwin saw that animals adapted to their environment in the Galapagos.
THE THEORY
Natural Selection is the process for which individuals with traits that are better suited for the environment are more likely to survive longer and reproduce more successfully than those individuals without these traits
NATURAL SELECTION
Adaptations are the inherited traits that increase an organism’s chance of surviving and reproducing in a particular environment.
THE MAIN OUTCOME…. The outcome of natural selection is diversity of
life
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