A Reflection on Natural History (Part 2)

Before the Scientific Revolution, any attempt to ascribe order to nature was largely rooted in the study of holy texts, rather than in the nature of minerals and organisms themselves. The development of natural history as an observational science in the seventeenth century changed this entirely and lives on to be a crucial element in the study of living organisms today.

It has become popular in the modern era to dismiss natural history as “mere” classification, lacking empirical methods, but this could not be further from the truth. Accurate classification is an essential element of understanding the natural world. There is not a more essential answer to the question “what is x?” than to give the classification of x, i.e. put it in relation to other living beings. Such an indefinite number of characteristics can be inferred by an organism’s taxonomic standing alone that this serves as a sort of shortcut to ripping individual organisms to shreds and painstakingly having to analyze and reanalyze the constituent parts of each individual organism. While an understanding of the anatomy of individuals within a species is of interest to some and has intrinsic value, the understanding of organisms in context with other similar and dissimilar organisms also has value. For those with questions unconcerned with the minutia of differences between individuals and who are focused with broader themes in evolution or organismal biology, a system of classification serves as a heuristic to understanding basic aspects of the organism at hand in relation to its own or other groups of organisms. Today, rather than defining natural groups by shared characteristics, these characteristics aid in the diagnoses of natural groups, which rather are defined by evolutionary relatedness. Still a need for the accurate classification of organisms persists.

Natural history as an observational rather than experimental science is not an outdated way of conducting zoology, ecology, or botany. Research lab settings are artificial and for those concerned with ethology, ecology, and observational field studies are crucial for comprehending the life history and behavior of animals and plants. Such observational studies have formed the bedrock of the modern understandings of these subjects. Even experimental studies themselves are inspired by observational studies after all.

Carolina Parakeet specimens are among the irreplaceable extinct specimens held in the Tetrapod Collection. (Photo Credit: Chelsea Hothem 2016)

Carolina Parakeet specimens are among the irreplaceable extinct specimens held in the Tetrapod Collection. (Photo Credit: Chelsea Hothem 2016)

Natural history museums and the specimens they contain also retain both intrinsic and practical value. Far from ‘mere’ cabinets of curiosities, natural history specimens serve as physical records of organisms, vouchers, from throughout history. The tags of these specimens usually record the location where the specimen was collected, the date, the stomach contents of the organism (for animals), pre-preparation measurements, the name of the collector, the cause of death, and many other bits of information that prove invaluable for research. Each specimen is comparable to a library book brimming with information that can inform future scientists on topics ranging from biodiversity, species distribution, the changes in species over time, impacts of humans over time, genetic information, historic climates, and conservation.

A young bluebird (Sialia sialis) that died after being entangled in this plastic. This is an unfortunate reminder that what humans do with their trash has repercussions for other species.This specimen was prepared by Tetrapod Curatorial Assistant, Grant Terrell and is now housed in the Museum of Biological Diversity’s Tetrapod Collection. (Photo: Grant Terrell, 2016)

A young bluebird (Sialia sialis) that died after being entangled in this plastic. This is an unfortunate reminder that what humans do with their trash has repercussions for other species.This specimen was prepared by Tetrapod Curatorial Assistant, Grant Terrell and is now housed in the Museum of Biological Diversity’s Tetrapod Collection. (Photo: Grant Terrell, 2016)

A modern example of the utility of museum collections is the application of DDT and its effects on North American birds. Chemicals within DDT were responsible for the terminal thinning of eggshells in birds exposed to the pesticide. Not until contemporary eggs could be compared with eggs in museum collections, were scientists able to confirm why avian populations were suffering.  If naturalists had not been consistently collecting eggs from North American bird species, humans may have continued using DDT without fully understanding its effects on non-targeted species. The value of a particular specimen only increases with time. This lesson can effortlessly be learned after only a single encounter with a specimen of a recently extinct species such as the Passenger Pigeon. Individuals within museum collections and the observations of naturalists are now all that remain for researchers with questions about such species. The advent of new technologies only increases the value of the work of naturalists such as Sir Hans Sloane. Researchers now sequence the DNA of specimens and compare it to that of modern individuals. It is unknowable what advances may further enhance the value of the study of natural history.

Thus it is very important to ensure preservation of specimens for future generations. Please support our efforts through our current fundraiser.

About the Author: Grant Terrell is a second year student at the Ohio State University who is currently double-majoring in Evolution & Ecology and History. He currently works as a Curatorial Assistant in the Tetrapod Collection of the Museum of Biological Diversity and focuses on Ornithology.

About the Author: Grant Terrell is a second year student at the Ohio State University who is currently double-majoring in Evolution & Ecology and History. He currently works as a Curatorial Assistant in the Tetrapod Collection of the Museum of Biological Diversity and focuses on Ornithology.

Works Cited

Huxley, Robert. The Great Naturalists. London: Thames & Hudson, 2007. Print.

Otter, Christopher. “Natural History.” History 3712. The Ohio State University Main Campus, Columbus. 6 Sept. 2016. Lecture.

Stott, Rebecca. Darwin’s Ghosts: The Secret History of Evolution. New York: Spiegel & Grau, 2012. Print.

A Reflection on Natural History: Part 1 of 2 (Topic post)

Before the Scientific Revolution, any attempt to ascribe order to nature was largely rooted in the study of holy texts, rather than in the nature of minerals and organisms themselves. The development of natural history as an observational science in the seventeenth century changed this entirely and lives on to be a crucial element in the study of living organisms today.

The philosophers of Classical Greece are responsible for an outlook towards the scheme of nature that would persist through the Early Modern Period. Among the first to attempt to organize nature was Aristotle. Aristotle saw the living world as a tiered hierarchy with a deity at its pinnacle, followed by angles (demigods), humans, [nonhuman] animals, plants, and minerals respectively (Otter 2016). While Aristotle was not himself a follower of an Abrahamic religion, this vision of nature was highly compatible with the Christian bible which painted humans at the height of Earthly creation. It was likely this compatibility that allowed the Aristotelian “Great Chain of Being” to persist as the dominant paradigm after Christianity came to rule the West, through the beginning of the Early Modern Period.

 

The Great Chain of Being from the Rhetorica christiana by Fray Diego de Valades (1579)

The Great Chain of Being from the Rhetorica christiana by Fray Diego de Valades (1579)

 

Likely spurred by rapidly expansive European marine excursions after Columbus’ voyage of 1492, and the resulting natural oddities shipped back to Europe from far-off lands, a pressing need arose to fit these new plants and animals into the existing understanding of nature. Natural history prints of this period were often fraught with inaccuracies and it became apparent that actual specimens of organisms would be necessary to properly sort these creatures into their places. Often, plants and animals were classified according to how useful these organisms were to humans (Huxley 2007, pp.33-37). Though the value placed on these specimens usually did not go beyond their potential economic worth or sheer curiosity towards the unfamiliar ‘beasts,’ collections of natural history specimens such as that of English doctor, Sir Hans Sloane, went on to become the foundations of Europe’s most prestigious natural history museums (Huxley 2007, pp. 116-117). It was at institutions such as these that a more systematic approach to the study of nature would be developed.

Swedish botanist, Carl Linnaeus has been credited with blowing apart the “Great Chain of Being” with the publication of his Systema Naturae in 1735 (Otter 2016). It is quite misleading, however, to think of his breaks with the Aristotelian system to be novel. Renaissance anatomist, Pierre Belon published his L’Histoire de la Nature des Oyseaux in 1555 and within he classified birds into 6 taxonomic groups based on their anatomy (revealed via dissection) and life habits. Like Linnaeus after him, Belon also understood the importance of homology in his classification schemes. His most famous monograph features an avian skeleton in the same anatomical position as a human skeleton depicted adjacent to it. Without making evolutionary assertions, Belon recognized that similar skeletal anatomy unified certain groups of animals (in this case, the tetrapods). This way of viewing nature represents a breakdown of the divinely planned hierarchical order long before Linnaeus (Huxley 2007, pp. 67-70).

The significance of Linnaeus’ Systema Naturae is, however, the codification of standards for the nomenclature and classification of animals, plants, and later fungi (Otter 2016). Linnaeus created a system of classification that he admitted was artificial, still elements of Linnaean taxonomy, crucially binomial nomenclature, survive today. In the system devised by Linnaeus, every living organisms is referred to with two names, the Genus and the species. Linnaeus’ hierarchical system has also been married with phylogenetic systematics by modern taxonomists who more-justifiably group organisms based on perceived-evolutionary relatedness.

This tag illustrates why binomial names are invaluable. Apparently it was common practice to refer to anhingas as "Water-Turkeys" in the '40s. Today, bird watchers and ornithologists alike would be lost in translation. (Photo: Grant Terrell 2016)

This tag illustrates why binomial names are invaluable. Apparently it was common practice to refer to anhingas as “Water-Turkeys” in the ’40s. Today, bird watchers and ornithologists alike would be lost in translation. (Photo: Grant Terrell 2016)

 

 

The work of French pop-naturalist, George-Louis Leclerc, the Comte de Buffon, represents the epitome of natural history in the eighteenth century. Buffon used his royal appointment at the Jardin du Roi as a platform from which to conduct expansive research which he then compiled into his fifty-volumed Histoire Naturelle which sought to document all that was then known about the natural world. Buffon revolutionarily depicted species as independent studies (meaning that he focused on detailing one species at a time), accompanied by lavish color illustrations, documenting their form, life history, and interactions with the rest of their environment. He placed humans in with the rest of animals (even apes), wrote of an old Earth, and included many proto-evolutionary ideas in his work.

 

Portrait of Georges-Louis Leclerc, comte de Buffon (1757)

Portrait of Georges-Louis Leclerc, Comte de Buffon (1757)

Histoire Naturelle was “pop-science”, intended for the amusement of the aristocracy and upper-bourgeois, yet it contained many revolutionary ideas and changed the face of natural history forever. While condemned by the academic circles of eighteenth century France, Charles Darwin himself wrote of a huge debt to Buffon in his letters to fellow naturalists (Stott 2012, pp. 10-11).

 

14117765_900911790015385_3081594463923684747_nAbout the Author: Grant Terrell is a second year student at the Ohio State University. He is  double-majoring in Evolution & Ecology and History. Grant works as a Curatorial Assistant in the Tetrapod Collection of the Museum of Biological Diversity and focuses on Ornithology.

 

Works Cited

Huxley, Robert. The Great Naturalists. London: Thames & Hudson, 2007. Print. Amazon: https://www.google.com/url?q=https://www.amazon.com/Great-Naturalists-Robert-Huxley/dp/0500251398&sa=D&ust=1476732896892000&usg=AFQjCNFdoE3oSkmxbPuFX35rthSgiKioEA

Otter, Christopher. “Natural History.” History 3712. The Ohio State University Main Campus, Columbus. 6 Sept. 2016. Lecture.

Stott, Rebecca. Darwin’s Ghosts: The Secret History of Evolution. New York: Spiegel & Grau, 2012. Print.

 

Third Party Photo Credits

https://commons.wikimedia.org/wiki/File%3AThe_Great_Chain_of_Being_(1579).jpg

https://commons.wikimedia.org/wiki/File%3ABuffon_1707-1788.jpgA Reflection on Natural History: Part 1 of 2 (Topic post)