by POPSUGAR Pets 4

With twice as many votes as the next closest twosome in the poll, topping the list for the sweetest zoo duo are Lara and Lucy, the Cottontop Tamarins born back in August.
The twins were orphaned and hand-raised by loving keepers at the Denver Zoo. I'm still finding the monkeys twice as nice and absolutely awwww-dorable being brushed with a toothbrush and fed with a syringe in cute closeups, so see why they're worthy of the big win in the gallery below.