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1,140 results for “down feathers”
Figure 3 in A new feather mite genus of the family Psoroptoididae (Acari: Analgoidea) from cassowaries
Figure 3. Hexacaudalges casuaricolus, female. (a) Dorsal view; (b) ventral view.
Figures 34–37 in Two new genera and five new species of the feather mite subfamily Proctophyllodinae (Astigmata: Proctophyllodidae) from suboscine birds in Brazil
Figures 34–37. Anisophyllodes candango sp. n., male legs I–IV, dorsal views.
Figures 43–46 in Two new genera and five new species of the feather mite subfamily Proctophyllodinae (Astigmata: Proctophyllodidae) from suboscine birds in Brazil
Figures 43–46. Platyacarus sittasomi sp. n., male legs I–IV, dorsal views.
Data from: Morphology and distribution of scales, dermal ossifications, and other non-feather integumentary structures in non-avialan theropod dinosaurs
<p class="MsoBodyText">Modern birds are typified by the presence of feathers, complex evolutionary innovations that were already widespread in the group of theropod dinosaurs (Maniraptoriformes) that include crown Aves. Squamous or scaly reptilian-like skin is, however, considered the plesiomorphic condition for theropods and dinosaurs more broadly. Here, we review the morphology and distribution of non-feathered integumentary structures in non-avialan theropods covering squamous skin and naked skin as well as dermal ossifications. The integumentary record of non-averostran theropods is limited to tracks, which ubiquitously show a covering of tiny reticulate scales on the plantar surface of the pes. This is consistent also with younger averostran body fossils, which confirm an arthral arrangement of the digital pads. Among averostrans, squamous skin is confirmed in<i> </i>Ceratosauria (<i>Carnotaurus</i>), Allosauroidea (<i>Allosaurus, Concavenator, Lourinhanosaurus</i>), Compsognathidae (<i>Juravenator</i>), and Tyrannosauroidea (<i>Santanaraptor, Albertosaurus, Daspletosaurus, Gorgosaurus, Tarbosaurus, Tyrannosaurus</i>), whereas dermal ossifications consisting of sagittate and mosaic osteoderms are restricted to <i>Ceratosaurus.</i> Naked, non-scale bearing skin is found in the contentious tetanuran <i>Sciurumimus</i>, possibly ornithomimosaurians (<i>Pelecanimimus</i>) and tyrannosauroids (<i>Santanaraptor</i>), and also on the patagia of scansoriopterygids (<i>Ambopteryx, Yi</i>). Scales are surprisingly conservative among non-avialan theropods compared to some dinosaurian groups (e.g., hadrosaurids); however, the limited preservation of tegument on most specimens hinders further interrogation. Scale patterns vary between and/or within body regions in <i>Carnotaurus</i>, <i>Concavenator</i> and <i>Juravenator</i>, and include polarised, snake-like ventral scales on the tail of the latter two genera. Unusual but more uniformly-distributed patterning also occurs in <i>Tyrannosaurus</i>, whereas feature scales are present only in <i>Albertosaurus</i> and <i>Carnotaurus.</i> Few theropods currently show compelling evidence for the cooccurrence of scales and feathers (e.g., <i>Juravenator,</i> <i>Sinornithosaurus</i>), although reticulate scales were probably retained on the mani and pedes of many theropods with a heavy plumage. Feathers and filamentous structures appear to have replaced widespread scaly integuments in maniraptorans<i>.</i> Theropod skin, and that of dinosaurs more broadly, remains a virtually untapped area of study and the appropriation of commonly-used techniques in other palaeontological fields to the study of skin holds great promise for future insights into the biology, taphonomy and relationships of these extinct animals.</p>
Figure 5 Montesauria caeruleasp. n in Two new feather mite species of the genus Montesauria Oudemans (Analgoidea: Proctophyllodidae) from thrushes (Passeriformes: Turdidae) in the Indian Subcontinent
Figure 5 Montesauria caeruleasp. n., Male: A – dorsal view; B – ventral view.
Figure 1 Montesauria hernandesisp. n in Two new feather mite species of the genus Montesauria Oudemans (Analgoidea: Proctophyllodidae) from thrushes (Passeriformes: Turdidae) in the Indian Subcontinent
Figure 1 Montesauria hernandesisp. n., Male: A – dorsal view; B – ventral view.
Figure 3 Montesauria hernandesisp. n in Two new feather mite species of the genus Montesauria Oudemans (Analgoidea: Proctophyllodidae) from thrushes (Passeriformes: Turdidae) in the Indian Subcontinent
Figure 3 Montesauria hernandesisp. n., Female: A – dorsal view; B – ventral view.
Figure 7 Montesauria caeruleasp. n in Two new feather mite species of the genus Montesauria Oudemans (Analgoidea: Proctophyllodidae) from thrushes (Passeriformes: Turdidae) in the Indian Subcontinent
Figure 7 Montesauria caeruleasp. n., Female: A – dorsal view; B – ventral view.
FIGURE 3 in Psittophagus hollandicus n. sp., a new feather mite species (Acariformes: Pterolichidae) from the cockatiel Nymphicus hollandicus (Kerr, 1792) (Psittaciformes: Cacatuidae) in Brazil
FIGURE 3: Psittophagus hollandicus n. sp.: dorsal view of male genua, tibiae and tarsi of legs I–IV (A–D) and opisthosoma (E); dorsal view of female genua, tibiae and tarsi III and IV (F–G).
Figure 3 in Two new species of feather mites (Acarina: Psoroptidia) from the Oriental Magpie-Robin,Copsychus saularis (Passeriformes: Muscicapidae)
Figure 3 Dolichodectes latilobusn. sp., female: A – dorsal view; B – ventral view.
FIGURE 10 in A new asymmetrical feather mite of the genus Michaelia Trouessart, 1884 (Astigmata: Freyanidae) from the Neotropical Cormorant, Phalacrocorax brasilianus (Pelecaniformes)
FIGURE 10: Michaelia neotropica n. sp., LTSEM pictures: ventral view of left tarsus II of heteromorphic male (A), dorsal view of left leg I of homeomorphic male (B), dorsal view of legs III and IV of heteromorphic male (C), ventral view of gnathosoma, femur and genu I of heteromorphic male (D), detailed view of pseudorutellar process (E), ventral view of ambulacrum II of heteromorphic male (F), lateral view of female in the feather corridor (G).
FIGURE 9 in A new asymmetrical feather mite of the genus Michaelia Trouessart, 1884 (Astigmata: Freyanidae) from the Neotropical Cormorant, Phalacrocorax brasilianus (Pelecaniformes)
FIGURE 9: Michaelia neotropica n. sp., LTSEM pictures: ventral view of heteromorphic male (A), ventral views of gnathosoma of heteromorphic male (B) and female (C); external genitalia (E) and detail of palptarsus of heteromorphic male (D).
FIGURE 2 in A new asymmetrical feather mite of the genus Michaelia Trouessart, 1884 (Astigmata: Freyanidae) from the Neotropical Cormorant, Phalacrocorax brasilianus (Pelecaniformes)
FIGURE 2: Michaelia neotropica n. sp., heteromorphic male legs: left leg I dorsal (A) and ventral (B), right leg I dorsal (C) and ventral (D), right leg II dorsal (E) and ventral (F), left leg II dorsal (G) and ventral (H), leg III dorsal (I), tibia and tarsus III ventral (J), leg IV dorsal (K), tibia and tarsus IV ventral (L).
FIGURE 8 in A new asymmetrical feather mite of the genus Michaelia Trouessart, 1884 (Astigmata: Freyanidae) from the Neotropical Cormorant, Phalacrocorax brasilianus (Pelecaniformes)
FIGURE 8: Michaelia neotropica n. sp., LTSEM pictures: prodorsal shield of homeomorphic male (A) and female (B), detail of female prodorsal shield (C); dorsal view of opisthosomal region of heteromorphic (D) and homeomorphic (E) males.
FIGURE 7 in A new asymmetrical feather mite of the genus Michaelia Trouessart, 1884 (Astigmata: Freyanidae) from the Neotropical Cormorant, Phalacrocorax brasilianus (Pelecaniformes)
FIGURE 7: Michaelia neotropica n. sp., Low Temperature Scanning Microscope (LTSEM) pictures of heteromorphic male (A), homeomorphic male (B), and female (A), dorsal view.
FIGURE 4 in A new asymmetrical feather mite of the genus Michaelia Trouessart, 1884 (Astigmata: Freyanidae) from the Neotropical Cormorant, Phalacrocorax brasilianus (Pelecaniformes)
FIGURE 4: Michaelia neotropica n. sp., homeomorphic male legs: left leg I dorsal (A) and ventral (B), right leg I dorsal (C) and ventral (D), left leg II dorsal (E) and ventral (F), right leg II dorsal (G) and ventral (H), leg III dorsal (I), genu, tibia and tarsus of leg IV dorsal (J).
FIGURE 6 in A new asymmetrical feather mite of the genus Michaelia Trouessart, 1884 (Astigmata: Freyanidae) from the Neotropical Cormorant, Phalacrocorax brasilianus (Pelecaniformes)
FIGURE 6: Michaelia neotropica n. sp., female legs: leg I dorsal (A); genu, tibia and tarsus of leg I, ventral (B); leg II dorsal (C); genu, tibia and tarsus of leg II, ventral (D); leg III dorsal (E) and ventral (F); leg IV dorsal (G) and ventral (H).
FIGURE 1 in AVIAN FEATHER MITES (ACARI: ASTIGMATA) OF SAMSUN, TURKEY Ali T. G , Sergey V. M and Kiraz E -Y
FIGURE 1: The Kızılırmak Delta, Samsun, Turkey. The red point indicates the capture site of examined birds.
Frozen feather and motif files for Distinct stage-specific transcriptional states of B cells derived from human tonsillar tissue.
<p>Frozen feather and motif files for manuscript "Distinct stage-specific transcriptional states of B cells derived from human tonsillar tissue" by Espinoza DA, et al. Data was downloaded from cisTarget database from aertslab.org.</p>
Data for New cold-adapted bacteria for efficient hydrolysis of feather waste at low temperature paper
<p>A novel cold-adapted bacteria <em>Arthrobacter oryzae</em> BIM B-1663 isolated from Antarctic green snow showed keratinase activity and efficient poultry feather degradation. <em>A. oryzae</em> strain degraded more than 80% of chicken feathers within 7 days of cultivation at 25°C. The optimal keratinase activity for <em>A. oryzae</em> BIM B-1663 was observed at 50°C, both for α-keratin (44.86 U/mL) and for β-keratin (94 mU/mL). The obtained results from sulfite and thiol groups tests and Fourier transform infrared spectroscopy (FTIR) showed that <em>A. oryzae</em> strain has a different keratin degradation mechanism than the reference strain <em>Bacillus</em> <em>licheniformis</em> CCM 2145<sup>T</sup>. FTIR fingerprinting can be used for monitoring of feather hydrolysis as it showed distinct chemical differences in feather meal hydrolysates, retentate and permeate from <em>A. oryzae</em> and <em>B.</em> <em>licheniformis</em> strains. </p>
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.