8 October 2008
AKA, World Octopus Day, Squid Appreciation Day, Squid Day To You
cephalopodcast.com/octopusday
What are cephalopods?
Ceph·a·lo·pods are marine mollusks like squid, octopus and cuttlefish, characterized by well-developed eyes and sucker-bearing tentacles. The word is from the combination of the Greek kefale and pous, roughly meaning head feet. Some folks pronouce it sefalopod, others say kefalopod.
Why October 8?
Cephalopods include the octopus, which have eight arms, and the squid, which have eight arms and two tentacles (8+2=10). October is the tenth month. A further discussion of the merits of the date were brought up in the comments over on Pharyngula. The original discussion of the date took place on TONMO.com.
Why Celebrate?
People are engrossed by the seeming alien intelligence of these marine invertebrates and their remarkable abilities. But despite our familiarity with them, both for food and fascination, remarkably little is know about even the most common species.
In spite of the large number of studies and research carried out on cephalopods, especially in recent decades, the life history of the majority of species is still unknown, and our knowledge of the life cycles of the members of this interesting class remains fragmentary. Information comes from studies in the field as well as from observations in the laboratory. However, little is known of life history for species that are not targets of regular fisheries, and only a handful of cephalopod species have been reared successfully in the laboratory.
From, Cephalopods of the World, a free UN FAO illustrated fact sheet on nearly every livingcephalopod.
So there is still a great deal to learn from these creatures. Follow the links below to fill in some of the gaps.
Top 10 Things You Can Do on Cephalopod Appreciation Day
- Make a Cephalopod
- hansigurumi, home of peculiar knitted cephalopods and other original designs
- Papercraft Flying Squid
- Wear a Cephalopod
- Buy a plush squid hat
- Make a quick squid costume using office supplies
- Taste a Cephalopod
- While still alive!
- Looks like calamari, tastes like hotdogs
- Watch a Cephalopod
- National Zoo’s Octopus Cam
- Archive webcast from colossal squid dissection
- Get a Cephalopod Tattoo
- Find a Fossil Cephalopod
- TONMO.com: Cephalopod Fossils and History Articles
- The Cephalopod Page: Fossil Cephalopods FAQs
- Engage in Proper Cephalopod Pluralization
- Read about cephalopods
- squid.us
- The Octopus News Magazine
- Pharyngula: Octopus Brains
- Write, draw, sing about Cephalopods
- CrashOctopus Blog: Musical Cephalopod
- Carne Curda: El Pulpo
- Jonathan Coulton: Octopus (mp3)
- Kevin Zlenio: Giant Squid Breakdown
- Spread the Word about Cephalopod Appreciation Day!
If you have an ICAD post that you would like to include, let me know. Email pulpodcast [at] gmail . com.Just like last year, I’ll be collecting links from around the Interweb at cephalopodcast.com/octopusday
THANKS! I ♥♥♥ Cephalopods
*It is still unofficial because no official governing body has (yet) made it a declaration.
The Cephalopod Aware
- The Ryno Pen: Guess What Day It Is This Time

Cephaloblog Comments