Green Frequency | Environmental Science & Earth Radio

How many species even are there?

May 26, 2026·23 min
Episode Description from the Publisher

How many species are there on Earth? Marine biologist and taxonomist Manuel Caballero Gutierrez explains how scientists estimate global biodiversity, discover new species, and why humanity may currently know only around 25% of the life forms that exist on this planet. This episode of Green Frequency explores taxonomy, ocean exploration, extinction, climate change, and the long scientific process of naming and cataloguing species. From deep-sea expeditions and DNA analysis to museum archives and biodiversity conservation, the conversation reveals why understanding life on Earth is essential for protecting ecosystems and human society alike. Recorded live at The American University of Paris, with the full presentation video and slides available on YouTube. Episode Guests: Dr. Manuel Callebar GutierrezBrowse Dr. Callebar Gutierrez’s publications on Research GateExplore the Pine Forest Media digital ecosystem on our websiteFind the full-length video on YouTube @PineForestPodsFollow us on Social Media @pineforestmediaAudio Editing by Clark Marchese, Video Editing by Oscar PadulaVideography and Set Design by Le Studio Du PassageCover Art by Laurel WongTheme music by Nela RuizFind some more Pine Forest Media podcasts belowListen to Oceanography on Spotify or Apple PodcastsListen to Plastic Podcast on Spotify or Apple PodcastsListen to South Pole on Spotify or Apple PodcastsListen to Something in the Water on Spotify or Apple Podcasts Hosted on Acast. See acast.com/privacy for more information.

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