What on earth's an alvar?

In this episode, you can discover precisely what an alvar is, and learn about the spiders that live there. We consider what it means to study a place with reference to animals, and vice versa. Jillian Suh Kurovski-Legris joins Tom to share her alvar expertise, rhapsodise about spiders, and consider the challenges and pleasures of studying the small and oft-ignored.