| Unlike the similar-looking ostriches, the head, neck, and thighs of rheas are feathered. |
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| In rheas, very small and very large clutches are more likely to be abandoned during incubation compared to intermediate-sized clutches. |
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| However, for rheas living in subtropical areas, nest attention could also avoid egg temperatures increasing up to lethal level for embryos. |
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| Like other studies of rheas we also observed that the male incorporated to its group chicks from other groups. |
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| Aside from the salary he receives from the foundation, Carlinhos has a pet shop and a farm close to the city where he wants to retire to raise rheas and capybaras. |
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| Ostriches, emus, cassowaries, rheas, kiwis, moas and elephant birds really are more closely related to each other than they are to any other birds. |
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| Because rheas walk almost continuously while foraging, we considered that they were walking instead of foraging only when the head was above the body while walking. |
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| But because it also keeps small collections of wallabies, emus and rheas, pressure group Zoo Check says the farm should come under strict zoo regulations. |
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| The two rheas were also distinct species, and on 14 March Darwin announced how their distribution changed going southwards. |
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| The common ostrich shares the order Struthioniformes with the kiwis, emus, rheas, and cassowaries. |
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| Large, generally flightless birds called ratites, which include emus, ostriches and rheas, are closely related to dinosaurs. |
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| Rheas are tall, long-legged birds, well adapted to a terrestrial lifestyle. |
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| Rheas are gregarious in habit, and tend to live in flocks ranging in size from 5-30 individuals. |
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