computer disk gigabyte hard hard disk harddisk hdd media megabyte memory mico plate round science storage technical terrabyte animal arboreal brazilian callithrix-argentata callitrichids colored colorful colors coloured colourful colours distinctive diurnal endangered-species flesh-colored-ears forager foraging mammal mico-argentatus monkey New-World-monkey omnivore omnivorous primate silvery-marmoset Singapore-zoo small tropical-rainforests-habitat whitish-silver-grey zoo