Spotted hyenas have a sloping back, with longer, heavier forequarters than hindquarters — proportions built for sustained travel on a hunt. Adults run 3 to 5.5 feet long, stand 2.3 to 3 feet at the shoulder, and weigh 90 to 190 pounds, and unusually the females are larger and more muscular than males and outrank them in the clan. The skull anchors massive jaw muscles for a bite that shears hide and fractures the bones of large ungulates, opening them to marrow, while concentrated stomach acid lets the hyena digest bone and other carcass material, later coughing up indigestible hair as compact pellets. The coarse sandy-to-reddish coat is marked with dark, irregular spots that fade with age, so old hyenas can look almost uniformly brown. Despite a dog-like look, hyenas aren't canines — they belong to the cat-line family Hyaenidae, closer to cats, mongooses, and civets, and the spotted hyena is the only living species of its genus.