I'm getting Animorph book cover vibes. https://imgur.com/gallery/all-animorphs-covers-FiRN1nt

I find some of the grotesque and unsettling imagery reminscent of famous japamanga "berserk" e.g.

https://berserk.fandom.com/wiki/Wyald

The title made me think of this:

https://en.wikipedia.org/wiki/Ilya_Ivanov

Title topic of "human animal hybrid" and fantastic artwork on the linked site reminded me of the shocking-but-thrilling classic book "The Island of Doctor Moreau", the 1896 science fiction novel, by famous English author H. G. Wells. Terrific and terrifying read for that era, and even later.

Also, see "Moreau's Other Island" by Brian Aldiss, an updated version of the classic. I found H.G.Wells writing to be very dated, not that Aldiss is current (published 1980) but I think it is biologically more plausible..

Oddly enough, I happen to be reading this book right now (though my edition is titled "An Island Called Moreau"). I had just finished re-reading Wells and Silvia Moreno Garcia's "The Daughter of Doctor Moreau" (a re-telling of the story set in colonial Mexico), and thought I'd try Aldiss's version. I am still trying to decide if he wrote it as a satire or not.

Indeed The Island of Doctor Moreau was one of the more disturbing books I've ever read.

I was thinking of this human-dog hybrid art

https://www.snopes.com/fact-check/the-young-family/