jellies do have a nervous system, albeit a very simple decentralized one (notable for having bidirectional impulse pathways).

equagga: justnoodlefishthings: dimetrodone: Some (box jellies) have eyes too Sponges however got no nerve tissue (that we know of). Living the good life cursed image if it makes you feel better, it has more eyes than that. those are just the big ones.

hectocotyli-everywhere: coolthingoftheday: In a never-before-seen phenomenon, a fish commandeered the body of a jellyfish for protection. Although it is common for fish to swim through jellyfish tentacles to avoid predators, this particular defense mechanism has never been seen before. You can watch the full video here: [x] F U L L Y  P O W …

montereybayaquarium: It’s jelly time! Gently pulsing jellies are beautiful to watch, but don’t let these unassuming invertebrates fool you. Their graceful trailing tentacles and oral arms are covered with stinging cells for snaring prey.

lucid-dream-world: baka-kashi: with-both-my-hearts: chiltonomics: the-lost-time-lord: viitypesofeverything: tekeli-li-tekeli-li: hoopxo: qoax: sociallubrication: The Lions Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before dinosaurs (over 650 million years ago) and are among some of the oldest surviving species in the world. Absolutely wow. I’m going to cry that …

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