... studies on P. multicolor have documented a high level of plasticity in brain size when fish were reared under high-oxygen versus low-oxygen conditions, with smaller brains in hypoxia-reared fish ( Crispo and Chapman, 2010 ; Wiens et al., 2014 ). In these studies, traits were measured only on adult fish...

...Javier Lázaro; Moritz Hertel; Scott LaPoint; Martin Wikelski; Matthias Stiehler; Dina K. N. Dechmann ABSTRACT In a rare phenomenon, shrews and a few other species cope with seasonal environments by reducing and regrowing brain size, potentially at the cost of changes in cognitive abilities. Here...

... into a re-examination, conducted with partial correlation analysis, of the maternal energy hypothesis relating to mammalian brain evolution, which suggests links between body size and brain size in neonates and adults, gestation period and basal metabolic rate. Much has been made of the potential problem...

... consumption anoxia hypoxia energetics brain size electric fishes The brain of man has hitherto been thought to account for the largest fraction of whole-body energy expenditure in vertebrates. The human brain consumes some 20 % of the O 2 taken up by the resting body ( Crile, 1941 ; Mink et al...