Results 21 to 30 of about 1,218,604 (309)
Tusk anomalies in narwhals (Monodon monoceros) from Greenland
The elongated, spiraled tusk of male narwhals (Monodon monoceros) grows continuously throughout the life of the whale and is most likely a secondary sexual trait used in male–male hierarchical competition and possibly in female mate choice.
Eva Garde, Mads Peter Heide-Jørgensen
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Modeling highly pathogenic avian influenza transmission in wild birds and poultry in West Bengal, India. [PDF]
Wild birds are suspected to have played a role in highly pathogenic avian influenza (HPAI) H5N1 outbreaks in West Bengal. Cluster analysis showed that H5N1 was introduced in West Bengal at least 3 times between 2008 and 2010.
Aly, Sharif S +3 more
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The spatial variation in the strength of climate change may lead to different impacts on migratory birds using different breeding areas across a region.
Beatriz Martín +2 more
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Frugivory in Raptors: New Observations from Australia and a Global Review
The diets of raptors are some of the best studied and well-known of all bird groups. Raptors are typically carnivores, hunting and feeding on vertebrates and, for some species, invertebrates. Here, we described instances of the Black Kite (Milvus migrans)
James A. Fitzsimons, Jack Leighton
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Waterbirds are often used as indicators of ecosystem function across broad spatial and temporal scales. Resolving which species are declining and the ecological characteristics they have in common can offer insights into ecosystem changes and their ...
Danielle Ethier +7 more
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Piometra em coelha holandesa (Oryctolagus cuniculus)
A piometra é uma condição comum frequentemente observada em coelhas domesticadas (Oryctolagus cuniculus), caracterizada por uma infecção no útero que pode resultar em complicações sistêmicas graves quando não tratada adequadamente.
Dandara Francys Rohr Bastos Bastos +7 more
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Fossilized skin reveals coevolution with feathers and metabolism in feathered dinosaurs and early birds [PDF]
Feathers are remarkable evolutionary innovations that are associated with complex adaptations of the skin in modern birds. Fossilised feathers in non-avian dinosaurs and basal birds provide insights into feather evolution, but how associated ...
Benton, Michael J. +11 more
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Predator-Proofing Avian Nestboxes: A Review of Interventions, Opportunities, and Challenges
Nestboxes are commonly used to increase the number and quality of nest sites available to birds that usually use tree cavities and are considered an important conservation intervention.
Joseph M. Marcus +2 more
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Good faith in the reform of insurance law [PDF]
Article by Professor John Birds, University of Sheffield published in Amicus Curiae - Journal of the Society for Advanced Legal Studies. The Journal is produced by the Society for Advanced Legal Studies at the Institute of Advanced Legal Studies ...
Birds, John
core
The magnetite-based receptors in the beak of birds and their role in avian navigation [PDF]
Iron-rich structures have been described in the beak of homing pigeons, chickens and several species of migratory birds and interpreted as magnetoreceptors.
Wiltschko, Roswitha, Wiltschko, Wolfgang
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