Wikimedia
Wikipedia: Mollusk
Wikipedia offers detailed information on mollusks, a large and diverse phylum including shelled sea animals and the octupus.
TED Talks
Ted: Ted Ed: Underwater Astonishments
David Gallo shows jaw-dropping footage of amazing sea creatures, including a color-shifting cuttlefish, a perfectly camouflaged octopus, and a Times Square's worth of neon light displays from fish who live in the blackest depths of the...
Other
Octopus of California
Twenty great pictures of octopi from California. This site also offers up close pictures of invertebrates, squids, and tidepools.
Other
The Cephalopod Page: What Behavior Can We Expect of Octopuses?
The navigation and spatial skills, tool use, play, and personalities of octopuses are covered in the studies discussed in this article.
Other
Dalhousie University: Octopus Dofleini
Provides an overview of the life of a giant octopus. Has a great picture.
Other
Octopus Vulgaris
Provides an overview of the life of the octopus vulgaris. Also has a great picture of the octopus vulgaris.
Regents of the University of Michigan
Animal Diversity Web: Class Cephalopoda
The Animal Diversity Web provides a general overview of the diverse group of cephalopods, including octopus, squid, nautilus, and cuttlefish.
Animal Fact Guide
Animal Fact Guide: Octopus
Learn about the octopus in this reference guide. The reference guide gives information on its physical characteristics, habitat (with a distribution map), diet, breeding patterns, unique traits and behavior, conservation status, and tips...
Discovery Education
Discovery Education: The Amazing Octopus
This lesson plan explores how some animals have the ability to change their body color to blend in with their environments, and how this ability protects them from predators by making them practically invisible.
Biology 4 kids
Biology4 Kids: Squid and Octopi Smart Cephalopods
Read about the general characteristics some cephalopod cousoins: the squid and octous.
A-Z Animals
A Z Animals: Animal Facts: Octopus (Octopus Vulgaris)
Investigate the world of the Octopus and discover information on the appearance, habitat, and predatory lifestyle of this cephalopod mollusc. Includes images and statistics.
Other
Sea and Sky: Mollusks
This illustrated article describes several different types of reef mollusks ranging form snails and clams to the chambered nautilus.
American Museum of Natural History
American Museum of Natural History: Blue Ringed Octopus O Logy Card
Flip this interactive OLogy card to find fast facts, questions and answers, and other bite-size pieces of information about the blue-ringed octopus.
Other
National Aquarium: Giant Pacific Octopus
A thorough site that describes the physical characteristics of the Pacific Octopus, examines its diet and habitat, and references its natural predators.
Enchanted Learning
Enchanted Learning: Sperm Whale
This clear and concise resource on sperm whales includes a diagram and information on its diet and echolocation.
Enchanted Learning
Enchanted Learning: Cephalopods
This site provides links to elementary information about cephalopods. Students and teachers will find links to the blue ring octopus, the giant squid, the cuttlefish, octopus and more.
PBS
Pbs Nature: Octopus
Come and discover what octopi eat and where they live when you visit this resource. Students and teachers will benefit from this clear and concise presentation of information.
PBS
Pbs: Nature: Encountering Sea Monsters
An extensive amount of information is featured in this PBS site on Cephalopods. Images, videos, books, and web links are just a few of the items that can be found here.
Georgia Aquarium
Georgia Aquarium: Giant Pacific Octopus
Use this animal guide to learn the scientific name and discover the habitat, diet, reproduction, physical, and other unique characteristics of the Giant Pacific Octopus.
CK-12 Foundation
Ck 12: Life Science: 9.9 Importance of Mollusks
Understand the behaviors, characteristics, and classification of mollusks.
MarineBio Conservation Society
Marine Bio: Giant Octopuses
Illustrated reference tool features useful information on the giant octopus with details on physical characteristics, behavior, range, habitat, diet, and conservation status.
Encyclopedia of Life
Encyclopedia of Life: Common Octopus
The Encyclopedia of Life presents this in-depth overview of Common Octopuses (Octopus vulgaris), including their habitats, size, conservation status, and much more. Images of this species and maps of its global distribution can also be...