cherry-blossom-cuttlefish:

biggest-gaudiest-poltergeist:

biggest-gaudiest-poltergeist:

google’s useless. tumblr tell me something fun about cuttlefish idegafanymore

Loving the notes:

• as with octopodes, cuttlefish have donut shaped brains. the esophagus passes through the center, which is why they straight up die if they try to swallow anything too big! stretched out the brain :(
• cuttlefish are filled with love, as demonstrated by their 3 hearts
• but they are also filled with venom. good for them!
• oh and also blue-green blood. yes they have teal blood, i love that for them
• smaller male cuttlefish will disguise themselves as female in order to mate with females who are guarded by large males. sometimes they even use fake egg sacs as props. let’s hear it for transfem lesbian cuttlefish!
• btw their eggs look like boba, which is why mermaids add them to beverages

• their pupils look like this:

• they have an internal shell called the “cuttlebone.” (it is not an actual bone, as cuttlefish don’t have bones.) they use it to control buoyancy, and it’s freaky:

• multiple people replied with “cuttlefish are fish.” they’re not. they! are! mollusks!
• and of course by far the most important cuttlefish fact, they change color for hunting, camouflage, and disguise purposes.

say thank you to our beautiful rainbow murder mollusks!!!

CUTTLEFISH MENTION !!! YAY YIPPEE

I will also add:

- They have 8 shorter arms (the ones you see) and two long tentacles that are normally kept hidden except for when they burst out to grab their prey like this:

- after they catch their prey successfully they will occasionally do a little flash of a different colour. It’s currently uncertain why they do this, but one theory is that it’s an involuntary response to being happy at having food!

- many sources, including the BBC, have claimed that they rapidly flash different colours before catching prey to “hypnotise” them. The current scientific consensus is that that’s probably not really true. Instead, it’s likely that they do it to break up their silhouette and so the prey isn’t really sure what they’re seeing - think like zebra stripes but strobing!

- they can change texture as well as colour. Since their skin is almost entirely muscle, they can make elaborate shapes and patterns out of their skin by retracting some muscles. That’s why they sometimes look very spiky and sometimes very smooth

- Some of the smallest species of cuttlefish, particularly the flamboyant cuttlefish, Ascarosepion pfefferi, are so small that their cuttlebone doesn’t even work as a flotation device, so they have to waddle around on the seafloor instead and it’s so so cute

Please tell me if I got anything wrong btw I’m not an expert just extremely autistic ^.^

(via biggest-gaudiest-poltergeist)