American Museum of Natural History
American Museum of Natural History: Crazy Camouflage
Create a flounder fish that's hard to spot. In this hands-on activity, students gather evidence to explore how camouflage helps animals survive.
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.