Quick darwin ncvps

A little about CharlieA little about Charlie

Charles Darwin is considered the founder of the modern theory of evolution

In 1831 Darwin was given the position of Naturalist on the HMS Beagle For 5 years he traveled in

South America and the south Pacific collecting and mapping

Galapagos IslandsGalapagos Islands

Small group of islands about 1000 km of the west coast of South America

Part of Ecuador Support some of the greatest diversity of

animal and plant life BIODIVERSITY

Some of the Some of the strugglesstruggles Darwin Darwin Envisioned to show how Envisioned to show how thingsthings

changechange

Competition for food

Competition for space

Escape from predators

The need for shelter

Darwin looked at pigeon Darwin looked at pigeon BreedingBreeding Breed desirable traits

This is called Artificial Selection- A technique in which a

breeder selects particular traits.

NATURAL SELECTIONNATURAL SELECTION

A- In nature, there is a tendency toward over production of offspring. Fishes, for example, lay thousands, sometimes

millions, of eggs

B- In any population of organisms, individuals will exhibit slight variations. Fishes may differ slightly in color, fin and tail size as

well as speed

C- Individuals with variations favorable for a particular environment are more likely to survive and pass those variations on to the next generation than individuals with less-favorable variations. Example- a fast fish with a skin color that allows it

to blend in better with its surroundings is more likely to survive to a reproductive age then slow fish with more obvious color.

D- Gradually, offspring of survivors will make up larger proportion of the population. Depending upon the environmental factors,

after many generations, a population may come to look entirely different.