Animals experience joy. Scientists want to measure it

Citations

S.L. Winkler et al. Bonobos tend to behave optimistically after hearing laughter. Scientific Reports. Published online June 26, 2025. doi: 10.1038/s41598-025-02594-8.

X.J. Nelson et al. Joyful by nature: approaches to investigate the evolution and function of joy in non-human animals. Biological Reviews. Vol. 98, May 1, 2023, p. 1548. doi: 10.1111/brv.12965.

Ľ. Košťál , Z. Skalná and K. Pichová. Use of cognitive bias as a welfare tool in poultry. Journal of Animal Science. Vol. 98, August 2020, p. S63. doi: 10.1093/jas/skaa039.

A.S. Reinhold et al. Behavioral and neural correlates of hide-and-seek in rats. Science. Vol. 365, September 13, 2019, p. 1180. doi: 10.1126/science.aax4705.

R. Schwing et al. Positive

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