Don't get discouraged! It is important I think to leave all background information we may have outside when we try to solve these questions.

Loving these explanations! I like how in addition to going over why a certain answer choice is incorrect for this problem, JY explains what changes can be made to the stimulus to make it a correct answer choice in a different hypothetical problem.

I didn't read C properly and instead thought that it was saying changes in wild bird food supply favored the survival of captive birds over wild birds... So I thought this had nothing to do with beak sizes and ruled it out immediately and got the question wrong :((

Lessons Learned:

Read the answer choices CLEARLY

Analyze the answer choices THOROUGHLY