Although I was not physically at this presentation, I was able to receive notes from a fellow classmate. Dr. Anelli’s presentation was based on the life of Charles Darwin’s and his influences and the paradigms of the time before him. One of the concepts that interested me was the work of John Ray ( 1627-1705). During his time, species were thought to be fixed and constant from creation. This school of thought was supported by the idea that organisms are perfectly adapted to their environment. I find this interesting because I can understand thinking behind it. “If an organism is to survive in an environment, then they should be adapted to their environment.” At the bare bones level, this makes sense, however it makes me think about the process of migration. Many organisms migrate; fish, birds, and even some crustaceans migrate for breeding purposes. Some humans migrate also (during the Lunar New year, China has the worlds largest human migration). Although the former is more of a necessity as opposed to the cultural implications of the latter, I believe that migration is a relatively common phenomenon.
If migration occurs, could this disprove the perfect environmental adaptation proposed by Ray? I would personally argue that if an organism was perfectly adapted to a single environment, then there would be little need for migration. If birds like the American Blue Jay can stay year round in Ohio, then by that logic, wouldn’t the Ruby-throated hummingbird be able to stay here year round and not just during the summer?
Or even if you look at things from an agricultural standpoint. It could have been observed in Ray’s time that the grains from the fertile crescent are not the exact same grains that would have been used in England at the time. Being in the 21st century looking back, it seems relatively obvious to me that evolution is a phenomenon. I suppose I can attribute this common sense to the work of Darwin and his groundbreaking work at the time.