World How 1,200-year-old eggs from a 9-foot tall, 1,500-pound bird led to a scientific breakthrough March 10, 2023Saleen Martin, USA TODAYComments Off on How 1,200-year-old eggs from a 9-foot tall, 1,500-pound bird led to a scientific breakthrough "This is the first time a taxonomic identification has been derived from an elephant bird eggshell," said co-author Gifford Miller from CU Boulder.