Daily Cephalopod #57
There are approx. 200 species of scyphozoa (true jellyfish)! They’re separated into 4 orders, those being: stauromedusae, coronatae, semaeostomeae, and rhizostomeae.
Hydrozoans are similar, but different. They are closely related and share a lit of similarities.
To help with this: Portuguese man o’wars and by-the-wind-sailors aren’t true jellyfish. Helmet jellies, cannonball jellies, and cauliflower jellies are true jellyfish
So true bestie what did you say btw i was dissociating
Marine scientists appear to have found some more natural wonders of the ocean: not one, but two deep-sea octopus nurseries in the waters of Costa Rica. One of these nurseries was previously thought to be inhospitable for eggs to hatch in, while the other was undiscovered until now. The team of scientists also believe that the octopuses nursing there might be a novel species, and the area itself is teeming with other sea life. Octopuses are generally considered to be solitary creatures. But there are some species known to be exceptions to this rule, and some circumstances where normally isolated octopuses will group together. In recent years, scientists have come across parts of the ocean filled with hundreds or more of octopus mothers protecting their eggs until they hatch—so-called nurseries. These gatherings are also sometimes called octopus gardens...
Read more: https://gizmodo.com/newly-explored-deep-sea-octopus-nursery-is-just-the-thi-1850591141
They’re named after the croaking sound they can make via repeatedly rasping a muscle against their swim bladder! And also they’re pretty silvery and light-coloured on their stomach.
This is a metal snail (Volcano Snail) that lives on underwater volcano vents in the Indian Ocean. Its shell and scaly feet both are armoured with layers of iron, making it the only animal to incorporate iron sulfide into its skeleton 🐌
📷: Dr Chong Chen/IUCN
the deep sea creatures when a scientist shows up with a flashlight outta no where
They take part in behaviour known as spyhopping, in which a great white will peek its head above water to view its surroundings! Oh, and speaking of viewing, great white sharks have a blue iris, which is very cool indeed!
I made the t-shirt design I wanted, so it's on Redbubble if anyone else want it too or whatever