Giant Pacific Octopus!

The largest octopus is the Pacific Giant Octopus, Enteroctopus dofleini.  According to data from a 1987 Masters Thesis from J.A. Cosgrove, the Pacific Giant Ocotopus can reach a weight of over 150 pounds (>70kg).  Our friend Jason Bradley, underwater photographer extraordinaire and honorary DSN photographer (post, post, post, post) captured this amazing shot at God’s Pocket in British Columbia.  He estimates is only to be just over 30 pounds.


Dr. M (1801 Posts)

Craig McClain is the Executive Director of the Lousiana University Marine Consortium. He has conducted deep-sea research for 20 years and published over 50 papers in the area. He has participated in and led dozens of oceanographic expeditions taken him to the Antarctic and the most remote regions of the Pacific and Atlantic. Craig’s research focuses on how energy drives the biology of marine invertebrates from individuals to ecosystems, specifically, seeking to uncover how organisms are adapted to different levels of carbon availability, i.e. food, and how this determines the kinds and number of species in different parts of the oceans. Additionally, Craig is obsessed with the size of things. Sometimes this translated into actually scientific research. Craig’s research has been featured on National Public Radio, Discovery Channel, Fox News, National Geographic and ABC News. In addition to his scientific research, Craig also advocates the need for scientists to connect with the public and is the founder and chief editor of the acclaimed Deep-Sea News (, a popular ocean-themed blog that has won numerous awards. His writing has been featured in Cosmos, Science Illustrated, American Scientist, Wired, Mental Floss, and the Open Lab: The Best Science Writing on the Web.

5 Replies to “Giant Pacific Octopus!”

  1. Wow what a cool site! Found it through a Reddit link. Is there anyway for people to help support like a hoodie with the deep sea logo to purchase or a paypal to donate, such a cool mission I just wish I could help.

  2. This fellow looks very similar to the ones we get down here, and they can do an 8 srm crawl across a wet deck and slide overboard thru a scupper at an unbelievable speed.the largest I have seen here would be about five feet across spread out.

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