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
Largest organisms the giant moa ("Dinornis maximus"), part of the moa family of New Zealand that went extinct around 1500 AD. This particular species of moa stood up to tall, but weighed about half as much as a large elephant bird or mihirung due to its comparatively slender frame. The heaviest bird ever capable of flight was "Argentavis magnificens", the largest member of the now extinct family Teratornithidae, found in Miocene-aged fossil beds of Argentina, with a wingspan up to , a length of up to , a height on the ground of up to and a body weight of at least