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443 results for “kangaroo”
Data from: Populations at risk: conservation genetics of kangaroo mice (Microdipodops) of the Great Basin Desert
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Data from: A priori and a posteriori approaches for finding genes of evolutionary interest in non-model species: osmoregulatory genes in the kidney transcriptome of the desert rodent Dipodomys spectabilis (banner-tailed kangaroo rat)
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Flight responses of eastern grey kangaroos to benign or harmful human behaviour
<p>Globally, wilderness is being converted for rural and agricultural land use. In countryside landscapes, many habitat structures remain intact, providing suitable habitat for wildlife species that can accurately assess novel risks and develop tolerance to benign disturbances. Associative learning that promotes avoidance and also facilitate desensitisation to benign disturbance is key to persisting in these landscapes. Conversely, learning to distinguish and avoid negative interactions with humans, like hunting, is vital. To determine if eastern grey kangaroos are capable of learning from previous interactions with humans, we tested the flight responses of wild kangaroos which have previously experienced either low or high frequencies of harmful and benign encounters with humans. We found that eastern grey kangaroos rapidly habituated to benign disturbance as there was no significant difference in assessment distance between groups that previously experienced low or high frequencies of disturbance. The threat of harmful disturbances was not as quickly learnt, as groups that experienced low frequencies of harmful disturbance delayed flight longer than those experiencing frequent harm. We found that the influence of environmental and group parameters on a kangaroo's decision to flee depended on the intent and frequency of previous interactions with humans. Our study indicates that kangaroos are learning from previous encounters with humans, correctly assessing novel risks which may be a contributing to their persistence in countryside landscapes.</p>
Kangaroo
Kangaroo Source: Objaverse 1.0 / Sketchfab
Comparative analysis of Dipodomys species indicates that kangaroo rat hindlimb anatomy is adapted for rapid evasive leaping
<p><span>Body size is a key factor that influences antipredator behavior. For animals that rely on jumping to escape from predators, there is a theoretical trade-off between jump distance and acceleration as body size changes at both the inter- and intraspecific levels. Assuming geometric similarity, acceleration will decrease with increasing body size due to a smaller increase in muscle cross-sectional area than body mass. Smaller animals will likely have a similar jump distance as larger animals due to their shorter limbs and faster accelerations. Therefore, in order to maintain acceleration in a jump across different body sizes, hind limbs must be disproportionately bigger for larger animals. We explored this prediction using four species of kangaroo rats (<i>Dipodomys </i>spp.), a genus of bipedal rodent with similar morphology across a range of body sizes (40–150 g). Kangaroo rat jump performance was measured by simulating snake strikes to free-ranging individuals. Additionally, morphological measurements of hind limb muscles and segment lengths were obtained from thawed frozen specimens. Overall, jump acceleration was constant across body sizes and jump distance increased with increasing size. Additionally, kangaroo rat hind limb muscle mass and cross-sectional area scaled with positive allometry. Ankle extensor tendon cross-sectional area also scaled with positive allometry. Hind limb segment length scaled isometrically, with the exception of the metatarsals, which scaled with negative allometry. Overall, these findings support the hypothesis that kangaroo rat hind limbs are built to maintain jump acceleration rather than jump distance. Selective pressure from single-strike predators, such as snakes and owls, likely drives this relationship.</span></p>
Distribution. SE Australia (NW Victoria to SE South Australia, including Kangaroo I) and Tasmania. in Burramyidae
Distribution. SE Australia (NW Victoria to SE South Australia, including Kangaroo I) and Tasmania.
Musky Rat Kangaroo in Hypsiprymnodontidae
Musky Rat Kangaroo
Fig. 6 in Kangaroo Island propolis types originating from two Lepidosperma species and Dodonaea humilis
Fig. 6. Known flavanones found in propolis and plant source resins in this study.
Fig. 4 in Kangaroo Island propolis types originating from two Lepidosperma species and Dodonaea humilis
Fig. 4. Known prenylated stilbenes found in propolis and plant source resin in this study.
Fig. 2 in Kangaroo Island propolis types originating from two Lepidosperma species and Dodonaea humilis
Fig. 2. Key heteronuclear multiple bond correlation (gHMBC) of compounds 1 to 5.
Fig. 1 in Kangaroo Island propolis types originating from two Lepidosperma species and Dodonaea humilis
Fig. 1. Cinnamic acid derivatives and prenylated dihydrochalcones identified in this study.
Admission to Kangaroo Mother Care (KMC) Ward and Maternal Postpartum Depression
ClinicalTrials.gov study NCT06545760. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Can Singing Kangaroo Improve Outcome of Preterm Infants
ClinicalTrials.gov study NCT03795454. IPD Sharing: NO. Countries: 0. Publications: 3.
The Effect of Kangaroo Care and Lullaby on Mother-Baby Physiological Parameters and Mother's State Anxiety Level
ClinicalTrials.gov study NCT06964204. IPD Sharing: UNDECIDED. Countries: 0. Publications: 3.
Kangaroo Care Reduces Infant Pain Caused By Vaccination
ClinicalTrials.gov study NCT04596137. IPD Sharing: YES. Countries: 0. Publications: 18.
Data from: The Phylogenetic Position of the Musky Rat-Kangaroo and the Evolution of Bipedal Hopping in Kangaroos (Macropodidae: Diprotodontia)
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Data from: Reconstructing the evolution of giant extinct kangaroos: comparing the utility of DNA, morphology, and total evidence
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Comparative analysis of Dipodomys species indicates that kangaroo rat hindlimb anatomy is adapted for rapid evasive leaping
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Flight responses of eastern grey kangaroos to benign or harmful human behaviour
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Analysis of the Genome sequence of an Australian kangaroo, Macropus eugenii, provides insight into the evolution of mammalian reproduction and development.
GEO Series GSE30372. Notamacropus eugenii. 10 samples. Type: Non-coding RNA profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing.
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.