Sex lives of animals without backbones Book

1974 first edition paperback. In his introduction, the editor, Roger Elwood, called out James Sallis (author of "Echo," "a gentle story of madness") as "a brilliant young author who should be doing more writing than he is." I don't know if that was high praise or "throwing shade" or what. I only know that, upon reading it, I felt the editorial pressure in my own body.

All of the stories are strange. How about this weirdness?"Dream animals, particularly those dreamed by very young children, are often accurate depictments of extinct animals; did you know that? But he is not quite an animal, and I am not quite a young child. And he isn't extinct."
"There are also dream people and quasi-people," Fabian said. "They are dreamed by adults, sometimes dreamed waking by adults, and perhaps they are real. What about the 'typhonian' features of dreamed people? Did all people once have typhonian features?"
- R. A. Lafferty, "And Mad Undancing Bears"