An even older one Rog,and sorry I do not have a link,was using old tires as homes for sea-animals.It may have been as far back as the '50s when some amateur divers notice that lobsters did not stay in the same spot but moved constantly along the coast.They noticed that the migrants used anything they could find as temporary shelter and so placed some tires on the sea bottom and then went back to pick up a few nice dinners when the lobsters booked in for the evening.Since then a lot of scientific research has been done.
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