The Roles of Chance and Natural Selection in Evolution

1
The Roles of Chance and Natural Selection in
Evolution
An evolution simulation
2
(No Transcript)
3
The Roles of Chance and Natural Selection in
Evolution
An evolution simulation
4
Migration to a new environment
5
Homework

• How were the changes observed similar to those
  that occur in natural populations according to
  Darwins theory? How were they different?
• What biological processes did we simulate that
  resulted in the origin of new characteristics in
  each animal in the simulation? How similar was
  what occurred in the simulation to that which
  results in diversity within species in natural
  populations?
• In the simulation, you were asked to copy the
  most successful creature from the previous
  generation as closely as you could, but there
  were instances during the simulation when someone
  purposely drew a characteristic on the animal
  that made it better suited to its environment?
  Do traits purposefully arise in nature? If so,
  explain how. If not, how do new traits arise?
• Do you think the title of the simulation..Change
  by Chance sufficiently encapsulates the driving
  force behind evolutionary changes modeled in the
  simulation? Explain.