Innovation and Fragmentation in Species

The chapter explores how species with fewer members and more fragmentation have innovations that are less easily shared across different species, using an analogy of deer species to explain the concept. It delves into the impact of species diversity on innovation spread, comparing scenarios of one large species to multiple smaller species. The discussion also touches on how the structure and size of species can affect the spread of innovations within and between species, emphasizing the role of geographic fragmentation in stimulating diversification.