The male sage grouse has air sacs that, when not inflated, lie hidden beneath the grouse's neck feathers. During its...

yckim2180 on May 12, 2021

Answer C

I understand why answer D is correct, but could you please explain why answer C is wrong?

Reply
Create a free account to read and take part in forum discussions.

Already have an account? log in

Emil-Kunkin on October 13 at 02:44PM

We are looking to strengthen the idea that the air sac display is a sign of health. The fact that some healthy grouses do not do this doesn't help the idea at all, if anything it hurts it. It shows that there is not as strong of a connection between the air sacs and health.