Results 61 to 70 of about 753 (160)
Next generation sequencing and analysis of a conserved transcriptome of New Zealand's kiwi
BMC Evolutionary Biology, 2010 Background Kiwi is a highly distinctive, flightless and endangered ratite bird endemic to New Zealand. To understand the patterns of molecular evolution of the nuclear protein-coding genes in brown kiwi (Apteryx australis mantelli) and to determine the ...
Huynen Leon +3 more
doaj +1 more source
An overview of the oldest and most comprehensive avifauna of the early Eocene British London Clay
Papers in Palaeontology, Volume 12, Issue 3, May/June 2026.Abstract Early Eocene birds from the British London Clay have been known for two centuries, but a comprehensive understanding of the avifauna of the London Clay Formation is still in its infancy. In the present study, the bird assemblage of the Walton Member is reviewed, which represents one of the oldest subdivisions of the formation.
Gerald Mayr
wiley +1 more source
Veterinary Record Case Reports, Volume 14, Issue 2, May 2026.SUMMARY A 17‐year‐old, 24‐kg, female greater rhea (Rhea americana) presented with an acute onset of left wing droop. Clinical examination and radiographs revealed an open, simple, displaced, short‐oblique diaphyseal fracture of the distal third of the left humerus.
Pierre Huberdeau +6 more
wiley +1 more source
, 2009 Figure 3. Comparable developmental stages of Meleagris gallopavo (A), Rhea americana (B) and Dromaius novaehollandiae (C). Each embryo is at stage 34 (Hamburger & Hamilton, 1951) and to the same scale.
Maxwell, Erin E., Larsson, Hans C. E.
core +1 more source
Preliminary assessment of bone histology in the extinct elephant bird Aepyornis (Aves, Palaeognathae) from Madagascar [PDF]
Comptes Rendus Palevol, 2016 Aepyornis, a giant subfossil ratite from Madagascar, shows a well-preserved bone histology. Hindlimb bones exhibit an extensive histodiversity; the cortex is initially made of fibrolamellar, well-vascularized primary bone that modulates locally into plexiform or laminar patterns. Lines of arrested growth are generally weakly expressed.
de Ricqlès, Armand +3 more
openaire +3 more sources
Ecology and Evolution, Volume 16, Issue 4, April 2026.We introduce ENHYDROSS, a new mechanistic model that uses optimal swimming speed and minimum cost of transport to estimate maximum dispersal distances and durations for vertebrates, enabling assessment of long‐distance oceanic dispersal potential. Applied to a range of extant and extinct animals, the model's estimates generally align with observed data;
Alexandros Pantelides +5 more
wiley +1 more source
, 2016 Rhea anchorenensis (Ameghino and Rusconi, 1932) is an extinct species of Rheidae (Aves, Palaeognathae) from the Pleistocene of Buenos Aires province, Argentina, only known for a distal fragment of a left tarsometatarsus.
Mosto, María Clelia +1 more
core +1 more source
Frontiers in Zoology, 2012 Background The avian glottis channels air from the oropharynx to the trachea and is situated on an elevated structure, the laryngeal mound. It is imperative that the glottis be protected and closed during swallowing, which in mammals is achieved by ...
Crole Martina R, Soley John T
doaj +1 more source
, 2010 We examined the external anatomy of the endocast of the Greater Rhea (<i>Rhea americana</i>, Palaeognathae), during 3 main stages of its postnatal life, and compared it with information available on other palaeognathous birds. Series of scans
Claudia P. Tambussi +2 more
core +1 more source
Why do some sex chromosomes degenerate more slowly than others? The odd case of ratite sex chromosomes [PDF]
, 2020 The hallmark of sex chromosome evolution is the progressive suppression of recombination which leads to subsequent degeneration of the non-recombining chromosome.
Alexander Suh +9 more
core +1 more source