Alluring larvae: Competition to attract fish drives species diversity among freshwater mussels

North America's freshwater mussels are both impressively diverse and highly imperiled. Nearly 300 species occur in the United States and Canada, and up to 40 species of the hard-shelled bottom dwellers can be found on a single stretch of a clean, swiftly flowing river.

source https://www.sciencedaily.com/releases/2021/11/211116103156.htm