Elephant bird "A. maximus" and "D. stirtoni" were revised to 540 and 730 kg, respectively. Four species are usually accepted in the genus "Aepyornis" today, but the validity of some is disputed, with numerous authors treating them all in just one species, "A. maximus". Up to three species are generally included in "Mullerornis". Several ratites outside of Madagascar have been posited as "aepyornithid"-like and could potentially make this clade considerably more speciose. These include "Eremopezus" from the Eocene of North Africa, unnamed Canary Island remains and several Neogene taxa in Eurasia. "Aepyornis maximus" is commonly known as the 'elephant bird', a term
Straight-tusked elephant they evolved into dwarfed elephants. The responsible factors for the dwarfing of island mammals are thought to be the reduction in food availability, predation and competition. Straight-tusked elephant The straight-tusked elephant ("Palaeoloxodon antiquus") is an extinct species of elephant that inhabited Europe during the Middle and Late Pleistocene (781,000–50,000 years before present). Some experts regard the larger Asian species, "Palaeoloxodon namadicus", as a variant or subspecies. It was formerly thought to be closely related to the living Asian elephant; however, in 2016, DNA sequence analysis showed that its closest extant relative is actually the African forest elephant, "Loxodonta cyclotis". It