… and locomotion in birds by testing the relationship between … energetic cost could be a driver
of encephalization during … as the expensive tissue hypothesis to explain encephalization in …

… Although these relationships were not significant in any species after correcting for multiple
hypothesis testing, the p value was <0.05 in B. brachyistius, suggesting a trend between …

… and developmental costs, then these costs should be easier … Our main goal here was to test
if prolonged longevity in birds … , our results also suggest a trade-off between clutch size and …

… Here, we test this idea of a fat-brain trade-off in 38 species of … , snake, and/or bird
predation; medium risk—species … costs of locomotion. However, we did not find evidence for a …

… primates and presumably mammals and birds in general. The use … In these tests, we did not
need to correct for phylogenetic … lineages, and generate and test hypotheses on its causes. …

… the energy consumption of reproduction or other costly … Our study shows that there is no
general energy trade-off … be a general requirement of encephalization in vertebrates. Besides, a …

… We tested the EB hypothesis by analysing correlated … were the energetic costs of these
enlarged brains (encephalization) … , we tested for (1) the existence of the brain–gut trade off and …

… is energetically costly but adequate cognitive benefits arise only after a delay. We therefore
… on birds, a lineage that is well suited for an integrated test of these different hypotheses. …

… size has mostly been investigated in birds and mammals. Thus, … lifespan to the list of costs
of increased encephalization (ie, a … Whereas our findings revealed a trade-off between brain-…

… of this model are used to test for hypotheses about adaptation and coevolution. The core …
the paradox of encephalization under allometric constraints in these lineages, but birds and …