Summary My guest today is Siena Mckim. Siena is a PhD student at UC Santa Barbara studying sponges in the kelp forest, which is arguably one of the most iconic marine communities. In particular, she’s looking at sponge symbionts – basically, the tiny marine organisms that use sponges as a habitat.  Today we hear about … More #45: Siena Mckim – The Wild World of Sea Sponges