In celebration of today's launch, I am sharing part of Sedeer's debut post, Do Species Really Exist?
|Although these two may look like different species, |
science says they are both Eclectus parrots...
But how do we determine which animals are the
same species and which are different species?
Photo by Doug Janson at Wikimedia Commons.
Despite these difficulties, we've been classifying organisms throughout the history of human thought, from Aristotle's division between plants and animals to modern scientific nomenclature. The modern classification system is based on grouping organisms into units called 'species'; species, in turn, group together into a larger units called genus, family, order, and so on through the nested hierarchy of life. What make a species, though? Why should a particular group of organisms be thought of as a unit and given a distinct name? How do we decide which organisms make up a species?
To ponder these questions, read the rest of Sedeer's article!