1 rich Libsyn https://www.libsyn.com 90 600 Environmental and science author Mary Ellen Hannibal describes her life and work and how the sixth extinction brought her to this work.&amp;nbsp; Mary Ellen is the author of&amp;nbsp;Citizen Scientist,&amp;nbsp;The Spine of the Continent&amp;nbsp;and&amp;nbsp;Evidence of Evolution. Ecologistics Podcast http://ecologistics.libsyn.com/website <iframe title="Libsyn Player" style="border: none" src="//html5-player.libsyn.com/embed/episode/id/12035945/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/content/57580493