Editing Encephalization quotient (section)

=== Dietary trends ===
Of the animals demonstrating the highest EQ's (see associated table), many are primarily [[frugivore]]s, including [[apes]], [[macaque]]s, and [[proboscidea]]ns. This dietary categorization is significant to inferring the pressures which drive higher EQ's. Specifically, frugivores must utilize a complex, trichromatic map of visual space to locate and pick ripe fruits and are able to provide for the high energetic demands of increased brain mass.<ref name=DecasienPrimate>{{cite journal |last1=DeCasien |first1=Alex R. |last2=Williams |first2=Scott A. |last3=Higham |first3=James P. |title=Primate brain size is predicted by diet but not sociality |journal=Nature Ecology & Evolution |date=27 March 2017 |volume=1 |issue=5 |pages=112 |doi=10.1038/s41559-017-0112 |pmid=28812699 |bibcode=2017NatEE...1..112D |s2cid=205564046 }}</ref>

[[Trophic level]]—"height" on the [[food chain]]—is yet another factor that has been correlated with EQ in mammals. [[Eutheria]] with either high AB (absolute brain-mass) or high EQ occupy positions at high trophic levels. Eutheria low on the network of food chains can only develop a high RB (relative brain-mass) so long as they have small body masses.<ref name=Steinhausen2016>{{cite journal |last1=Steinhausen |first1=Charlene |last2=Zehl |first2=Lyuba |last3=Haas-Rioth |first3=Michaela |last4=Morcinek |first4=Kerstin |last5=Walkowiak |first5=Wolfgang |last6=Huggenberger |first6=Stefan |title=Multivariate Meta-Analysis of Brain-Mass Correlations in Eutherian Mammals |journal=Frontiers in Neuroanatomy |date=30 September 2016 |volume=10 |pages=91 |doi=10.3389/fnana.2016.00091 |pmid=27746724 |pmc=5043137 |doi-access=free }}</ref> This presents an interesting conundrum for intelligent small animals, who have behaviors radically different from intelligent large animals. 

According to Steinhausen ''et al''.(2016): <blockquote>Animals with high RB [relative brain-mass] usually have (1)&nbsp;a short life span, (2)&nbsp;reach sexual maturity early, and (3)&nbsp;have short and frequent gestations. Moreover, males of species with high RB also have few potential sexual partners. In contrast, animals with high EQs have (1)&nbsp;a high number of potential sexual partners, (2)&nbsp;delayed sexual maturity, and (3)&nbsp;rare gestations with small litter sizes.<ref name=Steinhausen2016/></blockquote>