By studying different populations of Acanthinucela spirata, a marine gastropod found throughout the rocky coastal regions of California, the researchers discovered that past climatic changes altered the range of the species, which in turn, caused the species' shell shape to evolve.
(a marine gastropod; found; L:throughout the rocky coastal regions of California) (the researchers; discovered; that past climatic changes altered the range of the species) Context(the researchers discovered,List([137, 163))):(past climatic changes; altered; the range of the species) (the species; caused; the species' shell shape to evolve) Context(the species caused,List([212, 246))):(the species' shell shape; to evolve; )
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a marine gastropod the researchers past climatic changes the species the species' shell shape
found discovered altered caused to evolve
L:throughout the rocky coastal regions of California
that past climatic changes altered the range of the species
the range of the species
the species' shell shape to evolve