Results 11 to 20 of about 38,785 (309)
The Early Origin of Feathers [PDF]
Trends in Ecology & Evolution, 2019 Feathers have long been regarded as the innovation that drove the success of birds. However, feathers have been reported from close dinosaurian relatives of birds, and now from ornithischian dinosaurs and pterosaurs, the cousins of dinosaurs. Incomplete preservation makes these reports controversial. If true, these findings shift the origin of feathers
Benton, Michael +3 more
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Heritage, 2022 In this paper, two different objects from the ethnographic collection of the museum of the Congregation of the Sacred Hearts of Jesus and Mary (Rome), a Polynesian barkcloth (tapa) and a Polynesian headdress in feathers (pa’e ku’a), were investigated to ...
Claudia Colantonio +7 more
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Heavy Metals in Biota in Delaware Bay, NJ: Developing a Food Web Approach to Contaminants
Toxics, 2019 Understanding the relationship between heavy metal and selenium levels in biota and their foods is important, but often difficult to determine because animals eat a variety of organisms.
Joanna Burger +5 more
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A forensic approach to understanding habitat use from stable isotope analysis of (avian) claw material [PDF]
, 2003 1. The potential of using stable isotope signatures of avian claws in order to infer diet and habitat use was investigated. 2. Highly significant relationships observed between stable carbon and nitrogen isotope ratios (<sup>13</sup>C, &
Bearhop, S. +11 more
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The morphogenesis of feathers [PDF]
Nature, 2002 Feathers are highly ordered, hierarchical branched structures that confer birds with the ability of flight. Discoveries of fossilized dinosaurs in China bearing 'feather-like' structures have prompted interest in the origin and evolution of feathers. However, there is uncertainty about whether the irregularly branched integumentary fibres on dinosaurs ...
Mingke, Yu +3 more
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Nest decoration: birds exploit a fear of feathers to guard their nest from usurpation
Royal Society Open Science, 2021 Many species of birds incorporate feathers into their nest as structural support and to insulate the eggs or offspring. Here, we investigated the novel idea that birds reduce the risk of nest usurpation by decorating it with feathers to trigger a fear ...
Tore Slagsvold, Karen L. Wiebe
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Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2007 For the first time, it was identified a mite in a three-year-old male ostrich that had lost feathers and showed skin irritation. The animal belonged to a flock of 50 birds, located in Baixada Fluminense, in Rio de Janeiro State.
D.G. Mattos Jr +5 more
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Frontiers in Ecology and Evolution, 2020 The stem lineage relationships and early phenotypic evolution of Charadriiformes (shorebirds) and Gruiformes (rails, cranes, and allies) remain unresolved. It is still debated whether these clades are sister-taxa.
Grace Musser, Julia A. Clarke
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Describing the growth and molt of modern domestic turkey (Meleagris gallopavo) primary wing feathers. [PDF]
, 2020 The use of feathers as noninvasive physiological measurements of biomarkers in poultry research is expanding. Feather molting patterns and growth rates, however, are not well described in domestic poultry. These parameters could influence the measurement
Leishman, Emily M +6 more
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Brazilian Journal of Poultry Science, 2009 The large amounts of feathers produced by the poultry industry, that is considered as a waste was explored for possible uses in various industries, such as meals for animals, biofuels, biodegradable plastic materials, combating water pollution and more ...
I Davidson
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