1.0WAMUhttps://wamu.orgWAMUhttps://wamu.orgrich600338<blockquote class="wp-embedded-content" data-secret="2SyygBQ6yB"><a href="https://wamu.org/story/22/05/20/scientists-discover-an-ancient-forest-inside-a-giant-sinkhole-in-china/">Scientists discover an ancient forest inside a giant sinkhole in China</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://wamu.org/story/22/05/20/scientists-discover-an-ancient-forest-inside-a-giant-sinkhole-in-china/embed/#?secret=2SyygBQ6yB" width="600" height="338" title="“Scientists discover an ancient forest inside a giant sinkhole in China” — WAMU" data-secret="2SyygBQ6yB" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /*! This file is auto-generated */ !function(c,d){"use strict";var e=!1,o=!1;if(d.querySelector)if(c.addEventListener)e=!0;if(c.wp=c.wp||{},c.wp.receiveEmbedMessage);else if(c.wp.receiveEmbedMessage=function(e){var t=e.data;if(!t);else if(!(t.secret||t.message||t.value));else if(/[^a-zA-Z0-9]/.test(t.secret));else{for(var r,s,a,i=d.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),n=d.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),o=new RegExp("^https?:$","i"),l=0;l<n.length;l++)n[l].style.display="none";for(l=0;l<i.length;l++)if(r=i[l],e.source!==r.contentWindow);else{if(r.removeAttribute("style"),"height"===t.message){if(1e3<(s=parseInt(t.value,10)))s=1e3;else if(~~s<200)s=200;r.height=s}if("link"===t.message)if(s=d.createElement("a"),a=d.createElement("a"),s.href=r.getAttribute("src"),a.href=t.value,!o.test(a.protocol));else if(a.host===s.host)if(d.activeElement===r)c.top.location.href=t.value}}},e)c.addEventListener("message",c.wp.receiveEmbedMessage,!1),d.addEventListener("DOMContentLoaded",t,!1),c.addEventListener("load",t,!1);function t(){if(o);else{o=!0;for(var e,t,r,s=-1!==navigator.appVersion.indexOf("MSIE 10"),a=!!navigator.userAgent.match(/Trident.*rv:11\./),i=d.querySelectorAll("iframe.wp-embedded-content"),n=0;n<i.length;n++){if(!(r=(t=i[n]).getAttribute("data-secret")))r=Math.random().toString(36).substr(2,10),t.src+="#?secret="+r,t.setAttribute("data-secret",r);if(s||a)(e=t.cloneNode(!0)).removeAttribute("security"),t.parentNode.replaceChild(e,t);t.contentWindow.postMessage({message:"ready",secret:r},"*")}}}}(window,document); </script> https://wamu.org/wp-content/uploads/2022/05/gettyimages-1210405986_wide-dddc2f2d3e5a9f7053002050026ed27b819d6711-scaled.jpg25601440The sinkhole spans an area nearly three football fields long and is deep enough to hide the Washington Monument. Explorers descended into the pit, where they found ancient trees and other plant life.