Category: facts


For a wicked “gourd” time this time of year, we offer our animals pumpkin enrichment!

Creating new experiences is one way we keep intelligent animals like the #octopus healthy in mind and body. Aquarist Bill recently offered Freya a pumpkin filled with fish as a new take on a puzzle box.

Well, she thought about it for a while, finally engulfing the gourd in her arms and webbing. She sat there for a good while, and eventually slid off to the side. The fish were gone. Who had more fun—Freya or the visitors who got to watch this unusual enrichment activity?

Watch the video


Inktober Day 20: The Watcher. Did you know that there are as many as 240 suckers on each arm of an octopus? #inktober #inktober2018 #penandink #octentacles #octopus #dalerrowney


The cock-eyed squid is so called because the right eye is normal-sized, round, blue, and sunken; the left eye is at least twice the diameter of the right eye, tubular, yellow-green, faces upward, and bulges out of the head.

In 2017, researchers at Duke University established that the cock-eyed squid uses its larger eye to see ambient sunlight and animal silhouettes above, and its smaller eye to detect bioluminescence from prey animals in the darkness below. (x)


Hawaii scientists find tiny octopuses floating on plastic trash

Hawaii scientists found two tiny baby octopuses floating on plastic trash they were cleaning up as they monitored coral reefs. Marine ecologist Sallie Beavers of Kaloko-Honokohau National Historical Park said today that the octopuses were the size of green peas.

Scientists Have Found The Largest Deep-Sea Nursery, With More Than 1000 Octopuses:


With an estimated over 1,000 ockies spotted, the area at the Davidson Seamount has now been confirmed as the largest deep-sea octopus nursery every discovered.


Life is hard for the mighty cephalopod. “If you’re a cephalopod, you’re super easy to eat,” says Sarah McAnulty, a squid biologist. “You’re basically a swimming protein bar.”

She studies a species of cephalopod called the Hawaiian bobtail squid. While most cephalopods have flashy adaptations to stay off predators’ dinner menus this particular squid relies on something that many other cephalopods don’t—its bacteria BFF.

Although some invading bacteria are destroyed by cells within the bobtail, their immune systems can learn to recognize “beneficial bacteria,” or bacteria that is ignored, and may even receive help from the immune system if it proves helpful to the livelihood of the animal. Learn more about the Bobtail squid’s BFF in the latest Macroscope video! 


The Blue Ringed Octopus is one of the most venomous marine animals.  Despite its small size,  12 – 20cm,  their venom is capable of killing 26 adults within minutes.  Their venom is a powerful tetrododoxin found in their saliva,  which affects the nervous system and causes severe paralysis,  leaving the victim unable to breathe.  Because the bite is small and often painless many victims do not realize they have been bitten.  It is possible to survive a Blue Ringed Octopus bite with artificial respiration.



Dumbo Octopus is a term used to refer to all octopuses in the genus Grimpoteuthis, referencing the ear-like fins they have on their heads. Their flapping fins are used for propulsion, while their tentacles are used like a rudder to control their direction.

Mark Trail Comic Strip for October 07, 2018:


Seriously considering adding a third life event to my Facebook.

(Also, a whole lot of love and gratitude to James Allen, who is both an very kind person and a delightful goofball, and who can rock a fuchsia velvet blazer like nobody’s business.)

042_adj_DSC_7214 bobtail squid


Atlantic Bobtail Squid

Sepiola atlantica

This pear-shaped squid is akin to a wizard with its own invisibility cloak due to a symbiotic relationship with bioluminescent bacteria that lives in a special light organ in its mantle. When the squid leaves the safety of the seafloor to hunt at night, the bacteria hides the squid’s silhouette by matching the amount of light hitting the top of its mantle—making it virtually invisible in moonlit waters when viewed from below. In return, the small squid provides the bacteria with a sugar and amino acid solution to feed on.

Materials science experts in the U.S. Air Force have studied the symbiotic relationship between the squid and its bacteria to see if the reflective qualities could be used to improve their aircraft camouflage.