Life Below
A Mussel’s Byssal Threads Are an Attachment, Not a Root System
Look closely at the threads that attach a mussel to a surface without mistaking them for roots or pulling the animal loose.
Follow the water
Explore the coastal notebook
Life Below
A Shark’s Gills and a Dolphin’s Blowhole Reveal Different Ways to Breathe
Compare a dolphin’s air breathing with a shark’s gills, and keep a surface sighting separate from conclusions about an unseen animal.
Coastal Connections
A Leatherback Changes the Familiar Picture of a Turtle Shell
A leatherback does not have the familiar hard, scuted shell of other sea turtles. Learn what that difference shows—and what a photograph cannot establish.
Life Below
A Marine Species Sign Can Teach You Which Feature to Look For
A species panel often contains more than a name and an attractive picture. Its most useful detail may be a feature that helps you look more carefully…
Shoreline Notes
A Beach Access Path Is Part of Your Observation Method
Where you can safely reach the shore shapes what you are able to notice. A notebook that records only the beach itself can hide the selection created by its…
Life Below
An Aquarium Window Shows a Selected View of an Underwater Habitat
An aquarium display can make marine life wonderfully visible, but its window also sets the limits of what visitors see. Reading the exhibit label alongside…
Shoreline Notes
The Same Shoreline Object Looks Different Wet and Dry
A pebble can look dark and richly coloured beside the water, then pale on the upper beach. Before describing two photographs as different materials,…
Coastal Connections
A Coastal Map Begins Upstream When You Add the Watershed
The edge of the sea is not the beginning of everything that reaches it. Adding a watershed to a coastal map reveals connections that a narrow strip of…