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. 2023 Feb 21;9:1062420. doi: 10.3389/fvets.2022.1062420

Table A1.

Novel object characteristics and photos.

Object and photo Object and photo Object and photo
Beetle C: 3.88 PR: 0.5 EP: 0.5 graphic file with name fvets-09-1062420-i0001.jpg Frog C: 4.62 PR: 1 EP: 0.74 graphic file with name fvets-09-1062420-i0002.jpg Purple dinosaur C: 4.12 PR: 0.62 EP: 0 graphic file with name fvets-09-1062420-i0003.jpg
Blue fish C: 2.12 PR: 0.5 EP: 0.5 graphic file with name fvets-09-1062420-i0004.jpg Green shell C: 3.38 PR: 0 EP: 1 graphic file with name fvets-09-1062420-i0005.jpg Red river rock C: 1.25 PR: 0 EP: 1 graphic file with name fvets-09-1062420-i0006.jpg
Blue sponge C: 3.75 PR: 0.12 EP: 0 graphic file with name fvets-09-1062420-i0007.jpg Large leaf C: 2.62 PR: 0 EP: 1 graphic file with name fvets-09-1062420-i0008.jpg Shark C: 3.88 PR: 1 EP: 0.75 graphic file with name fvets-09-1062420-i0009.jpg
Blue van C: 4 PR: 0.38 EP: 0 graphic file with name fvets-09-1062420-i0010.jpg Lava rock C: 2.75 PR: 0 EP: 1 graphic file with name fvets-09-1062420-i0011.jpg Silver car C: 3.25 PR: 0.25 EP: 0 graphic file with name fvets-09-1062420-i0012.jpg
Brown spaghetti C: 3.12 PR: 0 EP: 0.5 graphic file with name fvets-09-1062420-i0013.jpg Leaf cluster C: 3.38 PR: 0 EP: 0.88 graphic file with name fvets-09-1062420-i0014.jpg Small river rock C: 1.5 PR: 0 EP: 1 graphic file with name fvets-09-1062420-i0015.jpg
Caterpillar C: 2.62 PR: 0 EP: 0.5 graphic file with name fvets-09-1062420-i0016.jpg Orange 2d fish C: 3.5 PR: 0.75 EP: 0.25 graphic file with name fvets-09-1062420-i0017.jpg Tan car C: 4 PR: 0.12 EP: 0 graphic file with name fvets-09-1062420-i0018.jpg
Centipede C: 3.88 PR: 0.12 EP: 0.38 graphic file with name fvets-09-1062420-i0019.jpg Orange spaghetti C: 3.25 PR: 0 EP: 0.38 graphic file with name fvets-09-1062420-i0020.jpg Waffle C: 2.88 PR: 0 EP: 0 graphic file with name fvets-09-1062420-i0021.jpg
Cockroach C: 4.25 PR: 0.25 EP: 0.75 graphic file with name fvets-09-1062420-i0022.jpg Pagoda C: 3.5 PR: 0.38 EP: 0.12 graphic file with name fvets-09-1062420-i0023.jpg White shell C: 3.25 PR: 0.12 EP: 0.75 graphic file with name fvets-09-1062420-i0024.jpg
Dark shell C: 3.88 PR: 0.12 EP: 1 graphic file with name fvets-09-1062420-i0025.jpg Pink sponge ball C: 4 PR: 0.12 EP: 0.12 graphic file with name fvets-09-1062420-i0026.jpg Yellow ball C: 1.5 PR: 0 EP: 0.12 graphic file with name fvets-09-1062420-i0027.jpg
Earwig C: 3.5 PR: 0.12 EP: 0.5 graphic file with name fvets-09-1062420-i0028.jpg Purple cup C: 2 PR: 0.14 EP: 0.14 graphic file with name fvets-09-1062420-i0029.jpg Yellow spoon C: 2.38 PR: 0.12 EP: 0 graphic file with name fvets-09-1062420-i0030.jpg

A list of the 30 novel objects used for this study (presented in a pseudo-randomized order across tanks) and the human-coded dimensions of interest: C refers to complexity (visual complexity of the object average score on a scale of 1 to 5), PR refers to predator-resemblance (the degree to which the object resembled a predator of zebrafish average score on a scale of 0 to 1), and EP refers to ecological-plausibility (the degree to which the object represented something a zebrafish might plausibly encounter in its natural environment average score on a scale of 0 to 1). These dimensions were generated by eight human coders that together had a Cronbach alpha of greater than 0.85 agreeability for each of these dimensions. NB: The object identified as “Orange 2d fish” is a rendering of the image that was printed on a sheet of paper and then laminated before being presented to the fish. Small white rectangles within each picture represent an estimate of a zebrafish's size in relation to the object.