In this awe-inspiring episode of Harvesting Wisdom, host Mike McMahon sits down with Dr. Donald McFarlane, biologist and cave ecologist from Claremont McKenna College, for a deep dive into biodiversity, climate science, and the mysteries of island ecosystems — all from aboard a National Geographic vessel in the Galápagos Islands.Dr. McFarlane reflects on a life dedicated to biological exploration, from Jamaican bat caves to the marine-rich Galápagos. Together, they discuss the unique accessibility of wildlife in the Galápagos, its striking volcanic geography, and how nutrient-rich upwellings fuel the region’s astonishing biodiversity.The conversation delves into the mechanics of evolution on islands, the impacts of climate change, and the story of white-nose syndrome decimating bat populations across North America. Dr. McFarlane also highlights how emerging technologies like ultrasonic recorders and AI are transforming the way we study ecosystems — offering hope and new tools even amid ecological decline.This episode is a celebration of scientific curiosity, environmental stewardship, and the power of firsthand experience in nature to shape a conservation mindset.