“…This prediction has sound empirical support, as benthic amphipods were found to be larger with increased oxygen content in water (Chapelle & Peck, 1999; but see also Makarieva, Gorshkov, & Li, 2005; and Verberk, Bilton, Calosi, & Spicer, 2011), Drosophila melanogaster was found to be smaller in hypoxia conditions, and this effect was enhanced at high temperatures (Frazier, Woods, & Harrison, 2001), smaller Lecane inermis rotifers laid more eggs, which indicates higher fitness, than larger individuals at high temperature/low oxygen conditions (Walczyńska, Labecka, Sobczyk, Czarnoleski, & Kozłowski, 2015), while the rotifer Keratella cochlearis increased with decreasing temperature in its natural habitat, although this pattern was constrained in poorly oxygenated water (Czarnoleski, Ejsmont‐Karabin, Angilletta, & Kozlowski, 2015). …”