Josef Pallenberg was a German animal sculptor. I only discovered his beautiful work recently while browsing the internet. Great poses, strong knowledge of anatomy as well as motion.
Pallenberg kept a "tame" lioness and a wolf at his home. He enjoyed taking them on a walk occasionally as he watched people freaking out.
I tried to get this book, pictured above, but it is out of print. Hopefully it will pop up on Ebay one of these days.
Here is the link to his Wikipedia page:
https://en.wikipedia.org/wiki/Josef_Pallenberg