These clams eat rock to make long tunnels:
https://www.youtube.com/watch?v=Qtb9sob62Pk Lee Skinner _______________________________________________ Texascavers mailing list | http://texascavers.com Texascavers@texascavers.com | Archives: http://www.mail-archive.com/texascavers@texascavers.com/ http://lists.texascavers.com/listinfo/texascavers
