Results 21 to 30 of about 59,441 (232)

Lateralization (handedness) in Magellanic penguins [PDF]

open access: yesPeerJ, 2019
Lateralization, or asymmetry in form and/or function, is found in many animal species. Brain lateralization is considered adaptive for an individual, and often results in “handedness,” “footedness,” or a side preference, manifest in behavior and ...
Thaís Stor   +3 more
doaj   +2 more sources

Penguin decays of B mesons [PDF]

open access: yes, 1998
Penguin, or loop, decays of B mesons induce effective flavor-changing neutral currents, which are forbidden at tree level in the Standard Model. These decays give special insight into the CKM matrix and are sensitive to non-standard model effects.
Abreu P   +12 more
core   +2 more sources

Sexual and geographic dimorphism in northern rockhopper penguins breeding in the South Atlantic Ocean [PDF]

open access: yes, 2020
The Endangered northern rockhopper penguin Eudyptes moseleyi, like all penguins, is monomorphic, making sex determination of individuals in the field challenging.
Bond, AL   +4 more
core   +1 more source

Foot darkening with age in Spheniscus penguins: applications and functions [PDF]

open access: yesPeerJ
The proportions of individuals in various age classes in a population of wild animals affect population trends, behaviors, learning, and social structures.
Ginger A. Rebstock   +2 more
doaj   +2 more sources

Tangled and drowned: a global review of penguin bycatch in fisheries

open access: yesEndangered Species Research, 2017
Penguins are the most threatened group of seabirds after albatrosses. Although penguins are regularly captured in fishing gear, the threat to penguins as a group has not yet been assessed.
Crawford, R   +28 more
doaj   +1 more source

Seabirds in Conditions of Local Chronic Oil Pollution, Davis Sea, Antarctica

open access: yesBirds, 2021
Oil spills are rare in Antarctica. They threaten flying birds and penguins. This is the first report on the interactions of seabirds with oil in the area of the Mirny Station (East Antarctica). The purpose of the study is to determine the total number of
Sergey Golubev
doaj   +1 more source

Up for grabs: prey herding by penguins facilitates shallow foraging by volant seabirds [PDF]

open access: yesRoyal Society Open Science, 2019
Visual and olfactory signals are commonly used by seabirds to locate prey in the horizontal domain, but foraging success depends on prey depth and the seabird's ability to access it.
A. M. McInnes, P. A. Pistorius
doaj   +1 more source

Evolutionary and Biogeographical History of Penguins (Sphenisciformes): Review of the Dispersal Patterns and Adaptations in a Geologic and Paleoecological Context

open access: yesDiversity, 2022
Despite its current low diversity, the penguin clade (Sphenisciformes) is one of the groups of birds with the most complete fossil record. Likewise, from the evolutionary point of view, it is an interesting group given the adaptations developed for ...
Jonathan S. Pelegrín   +1 more
doaj   +1 more source

Feathers as a Tool to Assess Mercury Contamination in Gentoo Penguins: Variations at the Individual Level. [PDF]

open access: yesPLoS ONE, 2015
Feathers have been widely used to assess mercury contamination in birds as they reflect metal concentrations accumulated between successive moult periods: they are also easy to sample and have minimum impact on the study birds.
Sara Pedro   +8 more
doaj   +1 more source

Effects of Diesel, Heavy Metals and Plastics Pollution on Penguins in Antarctica: A Review

open access: yesAnimals, 2021
Antarctica is a relatively pristine continent that attracts scientists and tourists alike. However, the risk of environmental pollution in Antarctica is increasing with the increase in the number of visitors.
Nurul Aini Puasa   +8 more
doaj   +1 more source

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