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With their punk hairstyles and bright colors, marmosets and tamarins are among the most attractive primates on earth. These fast-moving, lightweight animals live in the rainforests of South America. Their small size allowstakesmakesdrives makes it easy for them to dart about the trees, catching insects and small animals such as lizards, frogs, and snails. Marmosets have another unusual food dietresourceamountsource source – they use their chisel-like incisor teeth to dig into tree bark and lap up the gummy sap that seeps out, leaving telltale, oval-shaped branchesholestrunkstwigs holes in the branches when they have finished. But as vast tracts of rainforest are cleared for plantations and cattle ranches, marmosets and tamarins are in serious needconditioneagernessdanger danger of extinction.