Bob believes that giraffes have long necks because they have stretched their necks to try and reach food
that is high in trees. Since the parent stretched its neck, it passed the long neck on to its offspring. Ryan
believes that giraffes have long necks because the ones with long
necks were able to reach the food, and
those with short necks could not and died. The long-necked giraffes reproduced, and soon all
of the
giraffes
had long necks.
a. Who thinks like Lamarck? Explain.
b. Who thinks like Darwin? Explain.