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<p>[QUOTE="fridolina, post: 3460359, member: 17433"]Actually the boring sponge is not a predator but a filter feeder. They drill shells but also rocks and use the excavated canals as a safe place to live. Unfortunately, this damages and weakens the shells making them more vulnerable to other predators or, in time, the shell can collapse completely killing the mollusk.</p><p>I have a cameo with some damage from boring sponge but not as excessive as the one [USER=649]@bluumz[/USER] has shown us and I can’t think of a reason for using such a shell. </p><p>Nevertheless, the cameo is very interesting and unusual and I quite like it.[/QUOTE]</p><p><br /></p>
[QUOTE="fridolina, post: 3460359, member: 17433"]Actually the boring sponge is not a predator but a filter feeder. They drill shells but also rocks and use the excavated canals as a safe place to live. Unfortunately, this damages and weakens the shells making them more vulnerable to other predators or, in time, the shell can collapse completely killing the mollusk. I have a cameo with some damage from boring sponge but not as excessive as the one [USER=649]@bluumz[/USER] has shown us and I can’t think of a reason for using such a shell. Nevertheless, the cameo is very interesting and unusual and I quite like it.[/QUOTE]
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