Results 61 to 70 of about 358,967 (299)
Limitations on Animal Flight Performance [PDF]
Journal of Experimental Biology, 1991 ABSTRACT Flight performance seems to change systematically with body size: small animals can hover and fly over a wide range of speeds, but large birds taxi for takeoff and then fly over a narrow speed range. The traditional explanation for this is that the mass-specific power required for flight varies with speed according to a U-shaped
openaire +1 more source
Insights into a long life without cancer: The case of the bowhead whale
Molecular Oncology, EarlyView.Long‐lived, large‐bodied organisms have evolved powerful anticancer mechanisms that preserve cellular and tissue integrity across extended lifespans. A recent study by Firsanov et al. shows that greater genome stability is a key factor underlying the remarkable longevity and cancer resistance of one such species, the bowhead whale.
Inés Paniagua, Johanna A. Joyce
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Adaptive Bird-like Genome Miniaturization During the Evolution of Scallop Swimming Lifestyle
Genomics, Proteomics & Bioinformatics, 2022 Genome miniaturization drives key evolutionary innovations of adaptive traits in vertebrates, such as the flight evolution of birds. However, whether similar evolutionary processes exist in invertebrates remains poorly understood. Derived from the second-
Yuli Li +10 more
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Matching times of leading and following suggest cooperation through direct reciprocity during V-formation flight in ibis [PDF]
, 2015 One conspicuous feature of several larger bird species is their annual migration in V-shaped or echelon formation. When birds are flying in these formations, energy savings can be achieved by using the aerodynamic up-wash produced by the preceding bird ...
Alan M. Wilson +11 more
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The importance of including habitat-specific behaviour in models of butterfly movement [PDF]
, 2020 Dispersal is a key process affecting population persistence and major factors affecting dispersal rates are the amounts, connectedness and properties of habitats in landscapes.
Evans, Luke C., +6 more
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FEBS Open Bio, EarlyView.This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill +4 more
wiley +1 more source
Animalopters - towards a new dimension of flight mechanics [PDF]
Transport, 2002 Recently, it has been recognised that flapping wing propulsion can be more efficient than conventional propellers if applied to very small-scale vehicles, so-called MAVs (micro air vehicles).
J. A. Goszczynski +3 more
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AntioxidantsAging is associated with detrimental bone loss, often leading to fragility fractures, which may be driven by oxidative stress. In this study, the outcomes of comparing the differences among young, adult and aged C57BL/6J mice found that the trabecular ...
Duo Zhang +5 more
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Rethinking the Age of Zoo Reform
Humanimalia, 2016 Lisa Uddin, Zoo Renewal: White Flight and the Animal Ghetto. Minneapolis: University of Minnesota Press, 2014. xi + 277 pp. with 8 color plates.
Takashi Ito
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PLoS ONE, 2020 Flight morphological variations and its consequences on animal performance are common in winged insects. In the butterfly Heliconius charithonia, sex-related differences in the wing morphological design have been described resulting in differences in ...
Velia I Ramos-Pérez +4 more
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