What is a species? This apparently simple question is one of the best ways to get scientists arguing.
A recent article by Henry Taylor, a philosopher at University of Birmingham, asks this question from a philosophical perspective. The article itself is okay. But there is zero chance of biologists adopting its recommendation, ‘to scrap the idea of a species’, any time soon (see also this older article at the same platform, on the same subject, from a biologist’s perspective).
What I found interesting is how different audiences interpreted the article in the comments and on social media. I saw a mix of reactions (based on my network and a few searches; obviously not indicative of everyone) – some scientists were condemning the article vocally and aggressively, while others who didn’t appear to be scientists (based on their Twitter bio), shared the article in agreement and support.
‘What is a species?’ is a classic philosophical question, not a scientific one. Philosophical questions are a valuable tool for life. They are conceptual, not factual; they are rarely ‘solved’ (in the scientific sense); and they need to be addressed with complex thinking, not just facts or empirical research. You don’t have to agree with this approach, it’s just how Philosophy differs from Science. Disciplines are defined by different methodologies, standards, systems, and norms.