For a long time, tool use was thought to be exclusive to #primates and #birds, but #wrasses also use hard surfaces, or "anvils," to crack open hard-shelled prey such as crabs and molluscs. New research using #CitizenScience, and supported by an #FSBISmallResearchGrant, provides the first documented evidence of anvil use in several species of Halichoeres wrasses: https://www.youtube.com/playlist...

For more info or to contribute observations, visit: https://fishtooluse.com

https://link.springer.com/article/10.1007/s00338-025-02633-w