Physiologically, dire wolves were not a varied bunch, even between the sexes. Slightly larger teeth on the males are the only real sexual variation that anyone’s found. They hunted in packs, bringing down horses and bison. Good hunts might have brought down a giant ground sloth. During lean times they would have turned to scavenging carcasses—many dire wolves have worn or broken teeth from chewing bones—and eaten what smaller animals they could catch. That’s not really different from modern wolves.
