Hello all, If interested, please see below for details about our open-access publication in ICES Journal of Marine Science. My co-author, Dr. Carolyn Kurle, and I examined growth layer group characteristics and age estimation interpretation for killer whale teeth, with the hope that our approach might be useful for other researchers studying marine mammal teeth as well. Bowen KR, Kurle CM. A framework for age estimation of marine mammal teeth using killer whales (*Orcinus orca*). ICES Journal of Marine Science. 2025 Dec;82(12):fsaf202. https://academic.oup.com/icesjms/article/82/12/fsaf202/8382240 Please feel free to reach out if you have any questions. Best regards, Kelly Bowen -- Kelly R. Bowen (Flanders) Ph.D. Candidate - Kurle Lab Ecology, Behavior, and Evolution - Biological Sciences University of California San Diego 9500 Gilman Dr. La Jolla, CA 92093