Over the years there have been many hypotheses as to the evolution of unique primate traits. Among these is the visual predation hypothesis.
Scientists have long speculated the reasons behind the unique evolution of primate traits. This speculation has led to the development of three hypotheses, which are:
- The arboreal hypothesis
- The visual predation hypothesis
- The angiosperm radiation hypothesis
The visual predation hypothesis states that perhaps the unique traits featured are a result of an insectivorous ancestry. However, due to the uncommon nature of insectivory amongst current-day primates, this is unlikely to have been of much influence.
The angiosperm radiation hypothsis states that the availability of food sources, primarily fruit or flowers as a result of the spread of angiosperms, directly impacted the development of primate traits. Finally, the arboreal hypothesis simply proposes that primate traits have evolved as a result of having to adapt to life amongst the trees, this hypothesis is widely accepted.
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