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Ostrich farming grew out of this need, and humans harvested feathers, hides, eggs, and meat from the ostrich. Emu farming also became popular for similar reasons and for their emu oil. Rhea feathers are popular for dusters, and eggs and meat are used for chicken and pet feed in South America. Ratite hides are popular for leather products like ...
They are distantly related to the African ostriches and Australia's emu (the largest and second-largest living ratites, respectively), with rheas placing just behind the emu in height and overall size. Most taxonomic authorities recognize two extant species: the greater or American rhea (Rhea americana), and the lesser or Darwin's rhea (Rhea ...
The genus was used by Linnaeus and other early taxonomists to include the emu, rhea, and cassowary, until they each were placed in their own genera. [1] The Somali ostrich ( Struthio molybdophanes ) has recently become recognized as a separate species by most authorities, while others are still reviewing the evidence.
The emu is the second tallest bird in the world, only being exceeded in height by the ostrich; [32] the largest individuals can reach up to 150 to 190 cm (59 to 75 in) in height. Measured from the bill to the tail, emus range in length from 139 to 164 cm (55 to 65 in), with males averaging 148.5 cm (58.5 in) and females averaging 156.8 cm (61.7 ...
The common ostrich is the largest and heaviest living bird. Males stand 2.1 to 2.75 m (6 ft 11 in to 9 ft 0 in) tall and weigh 100 to 130 kg (220 to 290 lb), whereas females are about 1.75 to 1.9 m (5 ft 9 in to 6 ft 3 in) tall and weigh 90 to 120 kg (200 to 260 lb). [20]
Common ostrich, Struthio camelus. North African ostrich, Struthio camelus camelus; South African ostrich, Struthio camelus australis; Masai ostrich, Struthio camelus massaicus; Arabian ostrich, Struthio camelus syriacus † Somali ostrich, Struthio molybdophanes; Asian ostrich, Struthio asiaticus † East Asian ostrich, Struthio anderssoni †
Ancient humans in the Patagonia region used to hunt greater rhea, and stencils of greater rhea feet dating back to the early Holocene can be found at rock art sites such as Cueva de las Manos. [41] The species is farmed in North America and Europe in a similar fashion to other ratites, such as the emu and ostrich.
Ostrich (Struthio camelus) ... Rhea americana LR/nt South American pampas Lesser rhea: Rhea pennata ... Emu: Dromaius novaehollandiae LR/lc