Spondylolisthesis is a condition that occurs when one vertebral body slips with respect to the adjacent vertebral body causing radicular or mechanical symptoms or pain.

The drawing ✍️ is iconic and

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Bivalves were the first and among the only animals on Praya. The group that would dominate the land stems from a group of bivalves adapted for a more mobile/worm like lifestyle. With no invertebrates other than them, or vertebrates they were free to radiate for 90million years https://t.co/dBgYmXIsT9

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1er día del
Insectos en un mundo sin vertebrados voladores.
Descendientes de los primeros invertebrados terrestres,parecidas a las efímeras estos gigantes de un tiempo alterno gozaron de un carbonifero mas estable y duradero ,desarrollando una diversidad enorme

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I love invertebrates and all types of creatures

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Not many vertebrates are known from the Late Triassic Norian stage in Western North America: Shastasaurus (or Shonisaurus) sikkaniensis from the Pardonet formation of British Columbia was the largest marine reptile ever found. Gunakadeit was an odd thalattosaur from Alaska.

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Helerrets are the most common salmonids that can be found in the rivers, lakes and wetlands of the continent. These medium sized predators mainly feed on the abundance of mollusks and other hard shelled invertebrates, as well as smaller vertebrates occasionally.

(+)

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I guess this isn’t really a bad take, but I was thinking about it earlier. I miss when Fossil Pokemon were based off ancient lesser known animals (like marine invertebrates) instead of dinosaurs. Plenty of regular Pokemon look like dinosaurs, so it feels redundant. https://t.co/DfJJFOPLYQ

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Invertebrate valentines 🎡💝

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He tenido que inventarme un sistema de locomoción de 6 extremidades para vertebrados para justificarle a mi tutor del master los músculos que le estoy esculpiendo a mi criatura

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- it as such, but others have argued that it might instead be part of the theropod group called Megaraptora, which may or may not be allosauroids! Not much else is known about this dinosaur currently, as it's only known from some vertebrae and hip bones! (2/2)

Art by @/oroti0!

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TW: blood and bones (artwork)

Been hype focusing on Vertebrae's rp blog to help keep me distracted
here's just a few of the things I've done for her blog lately 🦴

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this is centipede
he's from SHOW_, a new object comic i've been messing around with
he's called an invertebralien

give me bugs to make invertebraliens out of :)

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ihope everyone is oklay;ibe bneen feeling extra-bad today;it could be b/c of the extra-bad surroundings (corpses & legs, & vertebraae everuwhere, composed of it) but im not sure;because im a stupid piece ofshit

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