U7L2 Activity Darwin's Theory of Natural Selection

Galápagos Finch Evolution


Watch the video on the next slide and then answer the questions that follow.

Open Ended

What beak size was more helpful in surviving the drought of 1977? How did this affect the next generation?

Open Ended

What then happened in the drought 2 years after the 1983 El Nino?

Open Ended

Since there are so many species of finches on the islands, the researchers started to wonder what keeps different species from mating? Explain what they found.

Open Ended

According to the research done by the Grants, what is the current best explanation for all the finch species on the Galápagos Isands?