Too hot to reason? Experimental heatwaves affect cognitive traits in male guppies

We investigated whether heatwaves impact cognition using male guppies (Poecilia reticulata) as a vertebrate model. Males were exposed to a 5-day experimental heatwave (32°C) or control treatment (26°C). Following the treatment, all fish were tested at 26°C for 1) spatial memory and learning in a maze test, 2) choosiness in a mate choice test, 3) inhibitory control in a detour test, 4) anti-predator response in an open field test, and 5) simple learning in a habituation test. We here provide the datasets of each of these 5 tests.