16: I went to South America and all I got was this dumb sweet potato Last updated on Dec 24, 2021 Go to Project Site podcasting science news birds holiday spirit Buffs Talk Science A podcast about science from CU Boulder and beyond hosted by Graycen Wheeler and Alison Gilchrist from 2018 - 2020. A podcast about science from CU Boulder and beyond hosted by Graycen Wheeler and Alison Gilchrist from 2018 - 2020.