Caponiidae
...that the family Caponiidae is unique among spiders because its members usually have two eyes?
...that the <a href="./Family_(biology)" id="mwiQ" rel="mw:WikiLink" title="Family (biology)">family</a> <i id="mwig"><b id="mwiw"><a href="./Caponiidae" id="mwjA" rel="mw:WikiLink" title="Caponiidae">Caponiidae</a></b></i> is unique among <a href="./Spider" id="mwjQ" rel="mw:WikiLink" title="Spider">spiders</a> because its members usually have two <a href="./Eye" id="mwjg" rel="mw:WikiLink" title="Eye">eyes</a>?