When Bruce was very young, his upper beak was cut off in an accident.
ximena nelson
When Bruce was very young, his upper beak was cut off in an accident.
ximena nelson
Bruce is “hanging out” with another man.
alex grabham
Bruce is “hanging out” with another man.
alex grabham
Bruce runs and jumps to “blow” opponents from a distance.
ximena nelson
Bruce runs and jumps to “blow” opponents from a distance.
ximena nelson
Bruce is “hanging out” with another man.
alex grabham
Bruce runs and jumps to “blow” opponents from a distance.
ximena nelson
The key to Bruce’s success and overall laid-back mood? Their unique beak pounce technique, which enabled them to quickly displace their rivals. At close range, Bruce would extend his neck to thrust at opponents, adding a run or leap to speed when attacking from a distance. Other non-disabled men mostly use downward bites on the opponent’s neck, while Bruce mostly engages in forward thrusts and targets his opponents’ back, head, wings and legs. It kicked like other kea but used half of its beak more often.
According to the authors, there are only two other cases in the scientific literature that are comparable to Bruce’s simple adaptation. In one case, the late Jane Goodall observed an alpha male chimpanzee named Fabian who had lost the use of his arm due to polio; His brother became the new alpha male. Fabian managed to achieve “beta” status through the association and by developing an unusual charging display. The second case involved an old Japanese macaque whose ability to walk gradually deteriorated; Macaques maintain their alpha status by cooperating with the alpha female. But Bruce achieved his alpha status through dominance on his own, not through any useful alliance.
“Bruce shows us that behavioral innovation can help overcome physical disability, at least in species with the cognitive flexibility to evolve new solutions,” said co-author Alexander Grabham of Te Whare Wānanga o Waitaha/University of Canterbury in New Zealand. “Previous research has shown connections between larger brains, behavioral flexibility, and survival at the species level. Bruce demonstrates how these connections work, in an individual, on traits that matter day-to-day, such as social dominance. Our findings also raise an important welfare question: Even if a disabled animal can find its way to success, well-intentioned interventions like prosthetics may not always improve their quality of life. Sometimes animals are better off without help. Can do.”
DOI: Current Biology, 2026. 10.1016/j.cube.2026.03.004 (About DOI).
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