A selection of free online alternatives, mostly to dissection.
Cow’s eye dissection
Uses enlargeable still images and audio to demonstrate eye dissection and identify the parts.
CSU Virtual Veterinary Educational Tools
Canine, feline, equine, bovine anatomy, neurological examinations, and more
Sheep brain dissection: the anatomy of memory
Progressive slides of sheep brain dissection accompanied by video, text and diagrams.
Virtual frog dissection kit
Interactive dissection of digitised frog using 3D imaging, with clickable organ names and functions.