ELI5: Explain Like I'm 5

Philosophy of biology

Hey kiddo, today we're going to talk about the philosophy of biology. Do you remember what biology means? It's the study of living things like plants and animals. The philosophy of biology is the study of the big ideas and questions that come up when scientists try to understand how living things work.

One of the big questions that philosophers of biology ask is: What does it mean to be alive? Scientists have been studying this question for a long time, and there's still much we don't know. We do know that living things can grow, change, and reproduce, while non-living things don't do those things. But there are some things (like viruses) that are hard to classify as either living or non-living.

Another question philosophy of biology asks is how living things change over time. You might remember in science class learning about evolution, which is a big part of this idea. But philosophy of biology goes beyond that—philosophers are also interested in how traits are passed down from parents to offspring, and how traits interact with each other to create new organisms.

Philosophy of biology also looks at how we classify living things. We use a system called taxonomy, which groups living things together based on their characteristics. For example, cats and dogs are both mammals, which means they have certain features in common (like having fur and giving birth to live young). But what about things like birds, which have feathers and wings, but don't give birth to live young? How do we decide what group they belong to?

So you see, philosophy of biology is all about asking big questions about what it means to be alive, how living things change over time, and how we classify them. It's a fascinating subject, and scientists and philosophers are still exploring these questions today!