1.0Gizmodo Australiahttps://gizmodo.com.auIsaac Schultzhttps://gizmodo.com.au/author/isaacschultz-usa/rich600338<blockquote class="wp-embedded-content" data-secret="EyPY3y1cAo"><a href="https://gizmodo.com.au/2021/04/these-immobile-sea-sponges-apparently-had-places-to-go/">These ‘Immobile’ Sea Sponges Apparently Had Places to Go</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://gizmodo.com.au/2021/04/these-immobile-sea-sponges-apparently-had-places-to-go/embed/#?secret=EyPY3y1cAo" width="600" height="338" title="“These ‘Immobile’ Sea Sponges Apparently Had Places to Go” — Gizmodo Australia" data-secret="EyPY3y1cAo" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); </script> https://gizmodo.com.au/wp-content/uploads/2021/04/27/fxjezowgs6ohfbbqgjj2-scaled.jpg?quality=7525601440With their rigid structures and lack of appendages, sponges can seem more like plants or fungi than the animals that they are. Long assumed to be basically immobile, sponges have been spotted leaving trails on the Arctic ocean floor, evidence they have more going on than scientists previously thought.