an IgNobel shoo-in: "If I fits I sits: A citizen science investigation into illusory contour susceptibility in domestic cats (Felis silvestris catus)"
https://doi.org/10.1016/j.applanim.2021.105338 / https://www.sciencedirect.com/science/authShare/S0168159121001258/20210504T154400Z/1?md5=f7dce735ee3c921b72784640686a981b&dgcid=coauthor (free to read till June 23 2021)
via Twitter (https://twitter.com/Explanimals/status/1389623777781239816)