Results 41 to 50 of about 1,466 (142)

A proxy for brain‐to‐endocranial cavity index in non‐neornithean dinosaurs and other extinct archosaurs

open access: yesJournal of Comparative Neurology, Volume 532, Issue 3, March 2024.
Illustration of the endocranial doming, which can provide a proxy for the brain‐to‐endocranial cavity index, using the endocast of an adult of the iguanodont dinosaur Proa valdearinnoensis as an example. Abstract Although the brain fills nearly the entire cranial cavity in birds, it can occupy a small portion of it in crocodilians.
Fabien Knoll   +2 more
wiley   +1 more source

Nuclear parcellation and numbers of orexinergic neurons in five species of larger brained birds

open access: yesJournal of Comparative Neurology, Volume 532, Issue 3, March 2024.
Immunohistochemical staining for orexin‐A reveals the orexinergic neuronal population in the hypothalamus of the Congo gray parrot. The arrangement of orexinergic neurons in the avian hypothalamus shows distinct conservation across avian species, unlike the variance noted in mammals. Abstract The orexinergic/hypocretinergic system, while having several
Pedzisai Mazengenya   +2 more
wiley   +1 more source

Slot blot hybridization of four repetitive sequences to genomic DNA of 17 species.

open access: yes, 2019
The fragments used for this experiment are as follows: APL-HaeIII-04 (A), AFA-HinfI-S03 (B), AFA-HinfI-L04 (C), and CCY-ApaI-05 (D). Genomic DNA used for this experiment was obtained from the following avian species of 10 orders: (1) Struthioniformes ...
Yoshinobu Uno (106265)   +4 more
core   +1 more source

Dynamic changes in ocular shape during human development and its implications for retina fovea formation

open access: yesBioEssays, Volume 46, Issue 1, January 2024.
We propose that fovea formation involves dynamic and asymmetric changes in ocular shape in humans and other species with foveated eyes. Abstract The human fovea is known for its distinctive pit‐like appearance, which results from the displacement of retinal layers superficial to the photoreceptors cells.
Ashley M. Rasys   +5 more
wiley   +1 more source

Hyalomma lusitanicum Koch 1844

open access: yes, 2020
17. Hyalomma lusitanicum Koch, 1844a. A Palearctic species whose adults are usually found on Artiodactyla: Bovidae; larvae and nymphs are commonly recovered from Lagomorpha: Leporidae (together with a few adult ticks).
Robbins, Richard G.   +2 more
core   +1 more source

Ixodes anatis Chilton 1904

open access: yes, 2020
9. Ixodes anatis Chilton, 1904. An Australasian species, all of whose parasitic stages are usually found on Struthioniformes: Apterygidae.Adults and nymphs have been collected from Anseriformes: Anatidae.
Robbins, Richard G.   +2 more
core   +1 more source

The emu (Dromaius novaeholladiae) & day old chicks [picture] /

open access: yes, 1939
"Habitat: Aust.
Gostelow, E. E. (Ebenezer Edward), 1866-1944.
core  

Amblyomma gemma Donitz 1909

open access: yes, 2020
46. Amblyomma gemma Dönitz, 1909. An Afrotropical species whose adults are usually found on Artiodactyla: Bovidae, but all parasitic stages have been recovered from these hosts.
Robbins, Richard G.   +2 more
core   +1 more source

Aves - Struthioniformes - Rheidae.

open access: yes, 2002
Brazilian Amazonia has one species of Rheidae, Rhea americana (Linnaeus, 1758)
Novaes, Fernando da Costa
core  

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