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 Gutierrez

Browse Dr. Callebar Gutierrez’s publications on Research Gate

WATCH THE FULL VIDEO ON YOUTUBE

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Audio Editing by Clark Marchese, Video Editing by Oscar Padula

Videography and Set Design by Le Studio Du Passage

Cover Art by Laurel Wong

Theme music by Nela Ruiz

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