What types of Organisms did Charles Darwin Discover on his expedition to the Galapagos Islands?

I need a little help for my report. and i cannot find what he discovered with google. could someone please help?

so What types of Organisms did Charles Darwin Discover on his expedition to the Galapagos Islands?

Birds, aquatic mammals, amphibians, and one species of land mammals. Here's a site that might help: http://www.gct.org/darwin.html

I was wondering if anyone has been to the galapagos/macchu picchu in south america with Linblad expeditions. if someone has, can you give me details about what you did, what you saw, how it was. please and thankyou.

Never heard of Linblad. My parents went to the Galapagos 3 years ago but did everything with Lima Tours. I also booked to Machu Picchu via Lima Tours.