Hank49
Contributor
Actually the parrot fish, beach sand theory is backed up by leading scientists and ichthyologists. Sim, you are correct howver in that not all sand is made this way. But on calm South Pacific islands without major pounding surf, this is the theory. Ever watch parrot fish when you startle them? ththththtpppp. Out comes the sand, or crunched coral they injested. Millions of years of this.....unless you're a creationist but that's another thread.....