50-70, to avoid the clickbaity title.<p>For a humorous look at the same idea for humans (150 fwiw), see here: <a href="http:&#x2F;&#x2F;www.cracked.com&#x2F;article_14990_what-monkeysphere.html" rel="nofollow">http:&#x2F;&#x2F;www.cracked.com&#x2F;article_14990_what-monkeysphere.html</a>