 | Uller, C., Jaeger, R., Guidry, G., Martin, C. 2003. Salamanders (Plethodon cinereus) go for more: rudiments of number in an amphibian. Animal Cognition 6: 105–112. |
 | Uller, C., Lewis, J. 2009. Horses (Equus caballus) select the greater of two quantities in small numerical contrasts. Animal Cognition 12: 733–738. |
 | Umeton, D., Read, J. C. A., Rowe, C. 2017. Unravelling the illusion of flicker fusion. Biology Letters 13: 1. |
 | Underwood, T. J., Sealy, S. G. 2006. Influence of shape on egg discrimination in American robins and gray catbirds. Ethology 112: 164–173. |
| Undurraga, J. A., Luke, R., Van Yper, L., Monaghan, J. J. M., McAlpine, D. 2024. The neural representation of an auditory spatial cue in the primate cortex. Current Biology 34: 2162–2174.e5. |
| Ungurean, G., Martinez-Gonzalez, D., Massot, B., Libourel, P.-A., Rattenborg, N. C. 2021. Pupillary behavior during wakefulness, non-REM sleep, and REM sleep in birds is opposite that of mammals. Current Biology 31: 5370–5376.e4. |
| Ünver, E., Garland, A., Tabrik, S., Güntürkün, O. 2017. Sneaking a peek: pigeons use peripheral vision (not mirrors) to find hidden food. Animal Cognition 20: 677–688. |
| Uomini, N., Fairlie, J., Gray, R. D., Griesser, M. 2020. Extended parenting and the evolution of cognition. Philosophical Transactions of the Royal Society B: Biological Sciences 375: 20190495. |
| Uomini, N., Hunt, G. 2017. A new tool-using bird to crow about. Learn Behav 45: 205–206. |
| Urban, L., Becker, R., Ochs, A., Sicks, F., Brecht, M., Kaufmann, L. V. 2024. Water-hose tool use and showering behavior by Asian elephants. Current Biology 34: 5602–5606.e1. |
| Urcelay, G. P., Miller, R. R. 2010. On the generality and limits of abstraction in rats and humans. Animal Cognition 13: 21–32. |
| Urfi, A. J., Mahendiran, M., Parthiban, M., Ahmed, P. 2026. Individual identification and confirmation of nest site fidelity in painted stork (Mycteria leucocephala) using deep transfer learning. Royal Society Open Science 13: 251083. |
| Urhan, A. U., Brodin, A. 2015. No evidence for memory interference across sessions in food hoarding marsh tits Poecile palustris under laboratory conditions. Animal Cognition 18: 649–656. |
| Urhan, A. U., Emilsson, E., Brodin, A. 2017. Evidence against observational spatial memory for cache locations of conspecifics in marsh tits Poecile palustris. Behavioral Ecology and Sociobiology 71: 34. |
| Ushitani, T., Fujita, K., Yamanaka, R. 2001. Do pigeons (Columba livia) perceive object unity?. Animal Cognition 4: 153–161. |
| Ustianowski, F. B., Cuthill, I. C., Scott-Samuel, N. E. 2026. Target occlusion and the confusion effect. Royal Society Open Science 13: 260483. |
| Üstündağ, Y., Akar, D. C., Kartal, M., Yarol, R. C., Bariş, M. M., Di̇nçer, P. F. P. 2026. Neuroanatomical investigation of aggression in pit bulls. Behav Processes 239: 105385. |
| Utvenko, G., Gorvat, P., Solopova, A., Pakhomov, A., Chernetsov, N. 2026. Magnetic cues and refuelling in thrush nightingales (Luscinia luscinia): a 25-year-old hypothesis revisited. Behavioral Ecology and Sociobiology 80: 116. |
| Uy, J. A. C., Safran, R. J. 2013. Variation in the temporal and spatial use of signals and its implications for multimodal communication. Behavioral Ecology and Sociobiology 67: 1499–1511. |
 | Uzsák, A., Schal, C. 2013. Social interaction facilitates reproduction in male German cockroaches, Blattella germanica. Animal Behaviour 85: 1501–1509. |
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