Which Of The Following Animals Is Most Likely To Exhibit Bilophodonty?
journal article
The American Naturalist
, pp. 335-351 (17 pages)
Published Past: The Academy of Chicago Press
https://www. jstor .org/stable/2461020
Living Old World monkeys (OWM) and apes diverged from a common ancestral state during the Miocene in diametrically opposite ways: OWM evolved bilophodont molar dentition, and apes evolved specialized postcrania that enhanced capacities for suspension and propulsion by the forelimbs. We suggest that during the development of OWM in that location was a selective premium on increasing energy gain from low quality food items. On the other hand, during the evolution of the apes there was a selective premium on reducing time expenditures in nutrient harvest and travel such that animals were able to visit more food patches in a given interval of time. The immediate ancestors of the outset OWM and apes of mod aspect were probably medium-sized arboreal frugivores with largely quadrupedal locomotor repertoires. The contrasting adaptive solutions exhibited by the ii taxa would thus have been produced by dissimilar responses to coordinating environmental circumstances, reduction in fruit abundance. Old World monkeys shifted diets to include more low-quality items (e.one thousand., leaves, unripe fruit), while apes maintained heavy reliance on fruit under weather condition of reduced food patch size and density. Monkeys and apes currently overlap completely in dietary composition, and we propose that remaining contrasts in foraging strategies lie in differences in the spatio-temporal distribution and patch sizes of nutrient sources, with apes exploiting patchier resources. Striking differences in the geographic distributions and species variety of OWM and apes signal that opportunities for successful pursuit of an ape foraging strategy have been express.
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Source: https://www.jstor.org/stable/2461020
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