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Simian
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<p>The simians, anthropoids, or higher primates are an <a href="/facts/Infraorder/GKLJvIpt">infraorder</a> (Simiiformes /ˈsɪmi.ɪfɔːrmiːz/) of <a href="/facts/Primate/Hl8RNE2X">primates</a> containing all animals traditionally called <a href="/facts/Monkey/ARjd5RRr">monkeys</a> and <a href="/facts/Ape/QdTk4pko">apes</a>. More precisely, they consist of the <a href="/facts/Parvorder/GKLJvIpt">parvorders</a> <a href="/facts/New_World_monkey/RQ1hJY79">Platyrrhini</a> (New World monkeys) and <a href="/facts/Catarrhini/CmXTFKwb">Catarrhini</a>, the latter of which consists of the family Cercopithecidae (<a href="/facts/Old_World_monkey/hrhKhgt7">Old World monkeys</a> in the stricter sense) and the superfamily <a href="/facts/Hominoidea/QdTk4pko">Hominoidea</a> (apes – including humans). </p><p>The simians are sister group to the <a href="/facts/Tarsiiformes/nM6BgtmS">tarsiers</a> (Tarsiiformes), together forming the <a href="/facts/Haplorhini/KhTwbmC2">haplorhines</a>. The <a href="/facts/Evolutionary_radiation/DDc0R6GS">radiation</a> occurred about 60 million years ago (during the <a href="/facts/Cenozoic_era/yFslcz6n">Cenozoic era</a>); 40 million years ago, simians colonized <a href="/facts/South_America/PhrFEMk7">South America</a>, giving rise to the <a href="/facts/New_World_monkey/RQ1hJY79">New World monkeys</a>. The remaining simians (catarrhines) split about 25 million years ago into <a href="/facts/Old_World_monkey/hrhKhgt7">Cercopithecidae</a> and <a href="/facts/Ape/QdTk4pko">apes</a> (including <a href="/facts/Human/rlcTENsr">humans</a>). </p>