Evolution Lab
BIO/101
Pooja Thakur
7-23-12

Evolution Resulting From Natural Selection

INTRODUCTION The Evolution Lab simulates environmental situations to determine effects on evolution over periods of time. This lab experiments with the evolution of finches on two different islands over 100, 200, and 300 years. By manipulating parameters that influence natural selection, the effects that natural selection have on the evolution process can be studied.

HYPOTHESES • The size of the island will influence the population. • The amount of precipitation will influence beak size. • Variances in beak size will influence beak size.

MATERIALS The materials needed for this experiment consist of a computer and …show more content…

As shown in the table above, Darwin Island capped out at 689 birds and Wallace Island ended up with 1458 birds. Wallace Island was twice as big as Darwin Island and was able to sustain twice the population. In the second test, Wallace Island had twice the precipitation as Darwin