Published “Origin of Species”
Traveled around the world in the Beagle
He proposed that:
Organisms produce more offsprings than
the available resources can support
Organisms fight for limited resources like
food, territory, and other necessities of life.
Only those who survive can produce their
Variation exists within species. For example,
some gorillas have longer arms than others.
Natural Selection - The environment
selects organisms with beneficial traits.
Lamarck vs Darwin
Jean Baptist de
French Naturalist English Naturalist
Acquired traits can be inherited by an
Organism adapts to changes in the
environment. Only the fittest organisms
survive through natural selection.