Tatoosh Island, where Prof. Cathy Pfister and her colleagues collected and analyzed some of the mussel shells.
CHICAGO–(ENEWSPF)–June 17, 2016
By Matt Wood
California mussel shells collected off the coast of Washington state in the 1970s are, on average, 32 percent thicker than modern specimens, according to a new study published by UChicago biologists.
Shells collected by Native Americans 1,000 to 1,300 years ago were also 27 percent thicker than modern shells, on average. The…
