Elephant bird to carry off large primates; today, lemurs still retain a fear of aerial predators such as these. Another might be the perception of ratites retaining neotenic features and thus being mistaken for enormous chicks of a presumably more massive bird. The ancient Malagasy name for the bird is vorompatra, meaning "bird of the Ampatres". The Ampatres are today known as the Androy region of southern Madagascar. Like the ostrich, rhea, cassowary, emu, kiwi and extinct moa, "Mullerornis" and "Aepyornis" were ratites; they could not fly, and their breast bones had no keel. Because Madagascar and Africa separated before the ratite
Elephant bird to , the largest type of bird egg ever found. The egg weighed about . The egg volume is about 160 times greater than that of a chicken egg. "Aepyornis" is believed to have been more than tall and weighed perhaps in the range of . In September 2018, scientists reported that "Vorombe titan" reached weights of , and based on a fragmentary femur, possibly up to , making it the world's largest bird. Only the much older species "Dromornis stirtoni" from Australia rivals it in size among known fossil birds. In the same report, the upper weight limits for