So I built a stegosaurus model kit, which included some factoids in the instructions. One of these factoids was that stegosaurs are not believed to have had a secondary brain in the hips to help them control their rear half after all. That was wild to me, since the whole stegosaurs and sauropods with their tiny heads needing a secondary brain for their huge bodies was commonly accepted back when I was a kid. So I looked it up, and indeed, the current hypothesis is that the cavity that the second brain was thought to occupy is used for a thing called a glycogen body. But what exactly does a glycogen body do? We’ll get back to you on that, apparently.
This isn’t true, the other poster’s source is likely AI generated. Turtles certainly have unique brain structures, but it’s still considered one brain with multiple regions. And these regions are all within the skull, not the neck.
EDIT: Just read their source again and they state turtles don’t have bones. Wow.
It gets better. Apparently, we all have multiple brains.
Haha I missed that clear horrendously nonsense statement! F-ing social media doom-scroll-disease! After all, what respectable vertebrate would lack any bones?!
It says leeches have 32 brains, pea sized, with 400 neurons, and 500 different types of neurons. Yeah, that’s clearly bullshit.