Royal jelly
<p ><b>Royal jelly</b> is a <a href="http://en.wikipedia.org/wiki/Honey_bee" title="Honey bee" >honey bee</a> secretion that is used in the nutrition of <a href="http://en.wikipedia.org/wiki/Larva" title="Larva" >larvae</a> and adult <a href="http://en.wikipedia.org/wiki/Queen_bee" title="Queen bee" >queens</a>.<sup id="cite_ref-0" class="reference" ><a href="http://en.wikipedia.org/wiki/Royal_jelly#cite_note-0" >[1]</a></sup> It is secreted from the<a href="http://en.wikipedia.org/wiki/Gland" title="Gland" >glands</a> in the <a href="http://en.wikipedia.org/wiki/Insect_mouthparts#Hypopharynx" title="Insect mouthparts" >hypopharynx</a> of worker bees, and fed to all larvae in the colony.<sup id="cite_ref-Graham_1-0" class="reference" ><a href="http://en.wikipedia.org/wiki/Royal_jelly#cite_note-Graham-1" >[2]</a></sup></p>
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When worker bees decide to make a new queen, either because the old one is weakening, or was killed, they choose several small larvae and feed them with copious amounts of royal jelly in specially constructed queen cells. This type of feeding triggers the development of queen morphology, including the fully developed <a href="http://en.wikipedia.org/wiki/Ovary" title="Ovary" >ovaries</a> needed to lay eggs.<sup id="cite_ref-Maleszka.2C_R_2008_2-0" class="reference" ><a href="http://en.wikipedia.org/wiki/Royal_jelly#cite_note-Maleszka.2C_R_2008-2" >[3]</a></sup></p>