This was originally my first attempt at writing up Zrehak's character description, but it turned into a full outline of the psychology of his species, Caxzimus.

They are a race of hydras/reverse-hydras that are naturally modular and telepathic.

This is just the first draft and small details about it are subject to change. Also, I'm still not sure if I'll expand into their culture, technology, etc.

Finally, I didn't make any explicit mention about their more private physiology, and I just mention their breasts a few times without going into any kind of detail, in order to allow all people to see it.