It occurred to Darwin that the driving force behind evolution of new species was a process he called natural selection. Time and space had resulted in their evolution. Over time, they had become a new species of finch. What made these species different? Was it possible they were ever the same? Darwin believed a few South American finches must have flown off to the Galapagos. So if Jeb and Irene can't make baby finches, that means they're part of the finch family, but distinct from one another.ĭarwin kept meticulous notes and drawings on the species he encountered. They confirmed that the birds Darwin collected were different species of finches to the ones they had in England.īut what makes Finch A (we'll call him Jeb) a different species from Finch B (Irene)? A species is a group of animals that can exchange genes (aka go ask your dad). Bet his crew was glad he didn't choose to study spiders.ĭarwin took birds from South America and the Galapagos Islands, off the coast of Ecuador, back to his naturalist buddies at home. While traveling the ocean blue, he kept a detailed diary of the organisms he saw at each pit stop, often collecting specimens to take home with him to England. Either way, Darwin was a naturalist who spent five years traveling by ship to chart the world. Beagle in 1831, he wanted to study what made nature tick…or maybe he was just looking for an opportunity to buy a sweet backpack and fill it with tons of composition books. When Charles Darwin started his studies on the H.M.S. This Darwin, studied finches and seagulls
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