1.0Derek Leehttps://scienceblog.com/derekleeDerek Leehttps://scienceblog.com/dereklee/author/dereklee/rich600338<blockquote class="wp-embedded-content" data-secret="JmrcJPA7kM"><a href="https://scienceblog.com/dereklee/327/giraffe-ossicones-unique-mammal-headgear/">Giraffe Ossicones: Unique Mammal Headgear</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://scienceblog.com/dereklee/327/giraffe-ossicones-unique-mammal-headgear/embed/#?secret=JmrcJPA7kM" width="600" height="338" title="“Giraffe Ossicones: Unique Mammal Headgear” — Derek Lee" data-secret="JmrcJPA7kM" 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); //# sourceURL=https://scienceblog.com/dereklee/wp-includes/js/wp-embed.min.js </script> https://i0.wp.com/scienceblog.com/dereklee/wp-content/uploads/sites/6/2021/04/giraffe-80-scaled.jpg?fit=2560%2C1707&ssl=125601707Ossicones are columnar or conical skin-covered bone structures on the heads of giraffe and okapi (Fig 1). Giraffe ossicones consist of a bone core covered with skin and attached to the skull with connective tissue. The bone, skin, and connective tissue of ossicones are all living growing tissues with blood vessels and nerves. All male ... Read more