Indivíduo abrindo a boca e exibindo a mucosa negra para intimidar os predadores.
<a href="//commons.wikimedia.org/w/index.php?title=User:Renato_Augusto_Martins&amp;action=edit&amp;redlink=1" class="new" title="User:Renato Augusto Martins (page does not exist)">Renato Augusto Martins</a>
<span class="int-own-work" lang="en">Own work</span>