A baby pygmy marmoset looks up while the adult feeds on sap from a tree.

(ARC lodge, Tamshiyacu-Tahuayo Reserve, Peru)

mammal; primate; monkey; simian; New World monkey; marmoset; pygmy marmoset; leoncito (local name); male, baby, feeding behavior, Chordata; Mammalia; Primates; subO Haplorrhini; infraO Simiiformes; parvO Platyrrhini; sF Ceboidea; Callitrichidae; Callithrix pygmaea, South America