Columbia subject headings:
Animals--Habitations.
Intertidal animals--Pacific Coast (North America)
Intertidal ecology--Pacific Coast (North America)
Marine invertebrates--Pacific Coast (North America)
Seashore animals--Pacific Coast (North America)
Seashore biology--Pacific Coast (North America)
Harvard subject headings:
Animal behavior
Animals--Habitations
Intertidal animals--Pacific Coast (North America)
Intertidal ecology--Pacific Coast (North America)
Invertebrates
Marine animals--Pacific Coast.
Marine invertebrates--Pacific Coast (North America)
Seashore animals--Pacific Coast (North America)
Seashore biology--Pacific Coast (North America)
Seashore biology--Pacific Coast.
Princeton subject headings: