1 rich Libsyn https://www.libsyn.com 90 600 Look It Up is a podcast for the curious. On today's episode: are farmers given enough incentive to leave fields fallow? How does Amtrak stay in business? And otters.&amp;nbsp; &amp;nbsp; &amp;nbsp; Sources:&amp;nbsp; Farming subsidies (Grist): bit.ly/farmingsubsidie. USDA Conservation Reserve Program (AgWeb): bit.ly/crpsubsidies. Average expected crop yields: bit.ly/potatopounds. History of Amtrak subsidies: bit.ly/amtraksubsidies. Amtrak budget starting 2015: bit.ly/amtrakbudget15. Supplementary amtrak data (Federal Railroad Administration): bit.ly/amtrakfra. Baking yeasts: bit.ly/activedryyeast. Otters (Aquarium of the Bay): bit.ly/liuotters. Look It Up http://lookitup.libsyn.com/podcast <iframe title="Libsyn Player" style="border: none" src="//html5-player.libsyn.com/embed/episode/id/5767209/height/90/theme/custom/thumbnail/yes/direction/forward/render-playlist/no/custom-color/88AA3C/" height="90" width="600" scrolling="no" allowfullscreen webkitallowfullscreen mozallowfullscreen oallowfullscreen msallowfullscreen></iframe> https://assets.libsyn.com/secure/item/5767209