What happened to the beak depth of finches born in 1978 compared to those born in 1976? Explain why you
think this occurred.

Why do you think the average beak depth of the birds increased?

Explanation:

Because the drought reduced the number of seeds and finches with bigger beaks were able to eat the larger and harder seeds so more of them survived.

I hope this helps - Natalia

the fossil record provides evidence of a common ancestor to many species.