Acrobatic squirrels learn to leap and land on tree branches without falling

Autor:	Lucia F. Jacobs, Robert J. Full, Judy Jinn, Nathaniel H. Hunt
Rok vydání:	2021
Předmět:	0303 health sciences Arboreal locomotion Multidisciplinary biology Computer science Extramural biology.organism_classification 03 medical and health sciences Tree (data structure) 0302 clinical medicine Aeronautics Falling (sensation) ComputingMilieux_MISCELLANEOUS 030217 neurology & neurosurgery LEAPS 030304 developmental biology Sciurus
Zdroj:	Science. 373:697-700
ISSN:	1095-9203 0036-8075
Popis:	Arboreal animals often leap through complex canopies to travel and avoid predators. Their success at making split-second, potentially life-threatening decisions of biomechanical capability depends on their skillful use of acrobatic maneuvers and learning from past efforts. Here, we found that free-ranging fox squirrels (Sciurus niger) leaping across unfamiliar, simulated branches decided where to launch by balancing a trade-off between gap distance and branch-bending compliance. Squirrels quickly learned to modify impulse generation upon repeated leaps from unfamiliar, compliant beams. A repertoire of agile landing maneuvers enabled targeted leaping without falling. Unanticipated adaptive landing and leaping "parkour" behavior revealed an innovative solution for particularly challenging leaps. Squirrels deciding and learning how to launch and land demonstrates the synergistic roles of biomechanics and cognition in robust gap-crossing strategies.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1c8b0a9b74421308b0c3c32a2a0a8a2b https://doi.org/10.1126/science.abe5753 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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