The shrub-ox (Euceratherium collinum) is an extinct genus and species of ovibovine caprine native to North America along with Bootherium (Bootherium bombifrons) and Soergel's ox (Soergelia mayfieldi).
Set in the Late Pleistocene, a Neanderthal man named Thugral is the last of his tribe and species but later he meets a human girl named Seera who has been enslaved and wants to taste freedom like Thurgal does.
