Global Museum<p>Named for their resemblance to old-fashioned quills, sea pens are colonies of polyps that inhabit the ocean floor! All of the polyps work together & each has a role to play. There are feeding polyps to catch plankton and polyps that circulate water to keep the colony ventilated.</p><p>American Museum of Natural History<br>@AMNH <a href="https://mastodon.online/tags/ocean" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ocean</span></a> <a href="https://mastodon.online/tags/marinecreatures" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>marinecreatures</span></a> <a href="https://mastodon.online/tags/polyps" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>polyps</span></a></p>