Animals affected by climate change are showing us how fragile our ecosystems have become. In this episode of How to Protect the Ocean, host Andrew Lewin speaks with Dr. Helen Killeen, a marine ecologist whose research connects seabird reproduction to shifting ocean temperatures, prey diversity, and climate pressures across the northern hemisphere.

Animals affected by climate change, from seabirds in the Arctic to those in the Pacific, serve as living indicators of ocean health. Helen explains how changes in prey diversity and warming oceans disrupt seabird breeding success, what this means for food webs, and why protecting biodiversity can help stabilize marine ecosystems. She also shares her journey from high-school science teacher to marine researcher, revealing how curiosity and adaptability are essential traits for anyone working to protect our planet.

Link to study: https://www.nature.com/articles/s43247-025-02717-z

Link to Farallone Institute: https://www.faralloninstitute.org/

Link to seabird page: https://seabirds.faralloninstitute.org/