This increase the chances of their larvae attaching to the right host fishes
https://metro.co.uk/2023/03/15/endangered-freshwater-mussels-squirt-water-to-help-larvae-survive-18443917/?utm_source=dlvr.it&utm_medium=blogger
https://metro.co.uk/2023/03/15/endangered-freshwater-mussels-squirt-water-to-help-larvae-survive-18443917/?utm_source=dlvr.it&utm_medium=blogger