National Geographic - Devils of the Deep (2008)

Index
Peter's DVD rating: 3.0 stars
594.58 DEV The little trick of rewarding a cuttlefish to "write" an X on its back is not "Pavlovian" conditioning, as Bill Gilly says, but operant conditioning.
5:20 Humboldt Squid (Red Devil) flashes red and white (Gulf of California) 7:30 Octopus captures shark with tentacles and venom, shreds with beak 12:00 Red Devil harvested for food (Santa Rosalia, Mexico)
18:30 Red Devils cannibalize each other 25:00 Cuttlefish conditioned to write "X" on their backs 26:30 Cuttlefish can also change texture and shape for camouflage
26:40 Mimic Octopus 26:50 Common Octopus 26:55 Common Octopus camouflaged as coral
27:20 Chromatophores expand and contract 27:50Male Reef Squid shows dark side to female, light side to other males 29:45 Two Red Devils flash out of phase
33:00 Small sneaker male cuttlefish impersonates a female 36:00 Red Devil has large retina 36:30 Can see polarized light
38:00Red Devils have travleed to Guaymas on mainland Mexico      
Dosidicus_gigas.jpg
5:20 Humboldt Squid (Red Devil)
octopus-shark.JPG
7:30 Octopus captures shark
Red_Devil-food.JPG
12:00 Red Devil harvested for food
Red_Devil-cannibalize.JPG
18:30 Red Devils cannibalize each other
cuttlefish-x.JPG
25:00 Cuttlefish conditioned to write "X" on their backs
cuttlefish-camouflage.JPG
26:30 Cuttlefish can also change texture and shape for camouflage
Thaumoctopus_mimicus.jpg
26:40 Mimic Octopus
Octopus_vulgaris-coral.jpg
26:50 Common Octopus
Octopus_vulgaris.jpg
26:55 Common Octopus camouflaged as coral
Chromatophores.JPG
27:20 Chromatophores
Sepioteuthis_sepioidea.jpg
27:50 Reef Squid
Red_Devils-flash.JPG
29:45 Two Red Devils flash out of phase
cuttlefish-impersonate.JPG
33:00 Small sneaker male cuttlefish impersonates a female
Red_Devil-retina.JPG
36:00 Red Devil has large retina
polarized.JPG
36:30 Can see polarized light
Index Mar 22, 2010 copyleft Peter Chen