Carlstead, K.; Fraser, J.; Bennett, C.; Kleiman, D.G. 1999. Black rhinoceros (Diceros bicornis) in U.S. Zoos, II. Behavior, breeding success, and mortality in relation to housing facilities. Zoo Biology 18 (1): 35-52, figs. 1-6, tables 1-4. { copied = true; setTimeout(() => copied = false, 10000); }).catch(err => { console.error('Failed to copy:', err); }); " type="button" :class="copied ? 'bg-secondary border-secondary' : 'border-primary hover:bg-primary'" class="group lg:min-w-64 flex items-center justify-between gap-5 border border-solid px-5 py-2 cursor-pointer transition-colors"> PDF download available