I need to do some animal/animal anatomy studies myself....
Highschool Misc. on RISD Portfolios
Anatomy of Bones We began our study of the skeletal system. Using the example at Angelicscaliwags , we began making a model of...
Hand-drawn human anatomy study diagrams. $35.00, via Etsy.
Animal skull biro drawing, animal structure project, Kat Russell
A good rendition of hands. I like the skeleton fingers best. A little busy, but good reference.
'a rare glimpse of leonardo da vinci's anatomical drawings' - maria popova, 2012 [brain pickings book review article, images + video link, of leonardo da vinci: anatomist by martin clayton, senior curator of the royal collection]
Basic anatomy of bones and other such diagrams at this site. Wonderful for healthcare Interpreters.
Anatomical Study of the Muscles of the Side of the Torso, c. 1507