Tuesday, November 13, 2007

Why are they small?

Hi. I have a question that relates to my previous post about the different kinds of butterflies that live on the Galapagos Islands. According to the information that I found, the largest butterfly and moth on the Galapagos Islands are both not native to the islands. My question is why are the largest of the moths and butterflies species not native to the Galapagos? Is there a reason why the butterflies and moths native to the Galapagos are small?

Thanks,
Daniel Pd.1