Natural Selection

Charles Darwin

First to propose the theory of evolution

HMS Beagle

The ship Darwin voyaged on

Evolution

the process by which different types of living organisms have developed and changed over time to help them adapt to their surroundings. Very gradual process.

Adapation

a trait that increases an organism's chance of survival and reproduction. ORGANISMS ARE BORN WITH THEM.

Natural Selection

the process where better adapted organisms tend to survive and reproduce more.

Survival of the Fittest

Organism that is the most "fit" to the environment will survive

Naturalist

A person who studies the natural world

1831

The year Darwin voyaged

A freezing environment

Organism with thick fur is most "fit

A desert with dark sand

Mouse with dark fur is most "fit

A desert with light sand

Mouse with light fur is most "fit

A city with a lot of pollution

A dark moth is most "fit

A city with no pollution

A light moth is most "fit

The first tenet of natural selection

Variations exist in a population

The second tenet of natural selection

Variations are inherited

The third tenet of natural selection

Overproduction

The fourth tenet of natural selection

Individuals best suited to their environment live to reproduce

The fifth tenet of natural selection

A population will change over time

Galapagos Islands

Where Darwin did the majority of his research