PLOS Biology<p>The kākāpō is an endangered <a href="https://fediscience.org/tags/parrot" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>parrot</span></a> endemic to NZ. @LaraUrban42 @HernMoral & co's study of most living <a href="https://fediscience.org/tags/kakapo" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>kakapo</span></a> shows that their green vs olive <a href="https://fediscience.org/tags/feather" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>feather</span></a> color <a href="https://fediscience.org/tags/polymorphism" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>polymorphism</span></a> has a structural basis and may result from past predation <a href="https://fediscience.org/tags/PLOSBiology" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PLOSBiology</span></a> <a href="https://plos.io/4daSv1Z" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">plos.io/4daSv1Z</span><span class="invisible"></span></a></p>