Lu, X.; Deng, T.; Rummy, P.; Zheng, X.; Zhang, Y. 2023. Reproduction of a fossil rhinoceros from 18 mya and origin of litter size in perissodactyls. iScience 26 (107800): 1-11. doi.org/10.1016/j.isci.2023.107800 { 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