Feathers from the red-and-green macaw, native to the Amazon rainforest, have been found hundreds of kilometres away at the ancient site of Pachamac. Credit: Balazs Tisza Feather-fancying ancient Peruvians imported live parrots from the other side of the Andes mountain range, hundreds of kilometres away1. Access Nature and 54 other Nature Portfolio journals Get Nature+, our best-value online-access subscription $32.99 / 30 days cancel any time Subscribe to this journal Receive 51 print issues and online access $199.00 per year only $3.90 per issue Rent or buy this article Prices vary by article type from$1.95 to$39.95 Prices may be subject to local taxes which are calculated during checkout doi: https://doi.org/10.1038/d41586-026-00765-9 Olah, G. et al. Nature Commun. https://doi.org/10.1038/s41467-026-69167-9 (2026). Article Google Scholar Download references Identical twins on trial: can DNA testing tell them apart?…