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Professor Dave Explains
Echinoderm Diversity Part 2: Classes Asteroidea and Ophiuroidea (Sea Stars and Brittle Stars)
Moving along with our study of the diversity of the echinoderms, we arrive at class Asteroidea, the sea stars or starfish, and class Ophiuroidea, the brittle stars. How many different kinds of starfish are there? What is their...
PBS
Pbs Learning Media: Intertidal Zone
This video segment from NOVA: "The Sea Behind the Dunes" explores the community of organisms that exists in the New England tidal marsh. [4:52]
NOAA
Noaa: Estuary Education: Intertidal Habitat
Join a scientist and several young students as they explore an intertidal pool using a seine net and fish traps. [4:45]