Well, Octopi sit in the rocks and change color, (quite quickly and dramatically I might add) and wait for crabs and other small fish to pass by, but 90% crabs. read more
Those kinds of mollusks died out at the same time as the dinosaurs but, in the present day, squid and octopuses are formidable ocean hunters with an intelligence that outshines any fish. This page explores all types of mollusks, from the humble slug to the compelling Giant Pacific Octopus. read more