Freshwater shrimp kept for twenty hours at a caffeine concentration detected in highly polluted rivers spent less time in the dark than shrimp kept at ordinary background levels, and that shift was about the same size as the one caused by a parasite that manipulates them into being eaten by water birds

1.0Ireland News Beep | NewsBeep.comhttps://www.newsbeep.com/ieNEWSBEEPhttps://www.newsbeep.com/ie/author/newsbeep/Freshwater shrimp kept for twenty hours at a caffeine concentration detected in highly polluted rivers spent less time in the dark than shrimp kept at ordinary background levels, and that shift was about the same size as the one caused by a parasite that manipulates them into being eaten by water birdsrich600338<blockquote class="wp-embedded-content" data-secret="Xm33q5aklA"><a href="https://www.newsbeep.com/ie/622169/">Freshwater shrimp kept for twenty hours at a caffeine concentration detected in highly polluted rivers spent less time in the dark than shrimp kept at ordinary background levels, and that shift was about the same size as the one caused by a parasite that manipulates them into being eaten by water birds</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.newsbeep.com/ie/622169/embed/#?secret=Xm33q5aklA" width="600" height="338" title="“Freshwater shrimp kept for twenty hours at a caffeine concentration detected in highly polluted rivers spent less time in the dark than shrimp kept at ordinary background levels, and that shift was about the same size as the one caused by a parasite that manipulates them into being eaten by water birds” — Ireland News Beep | NewsBeep.com" data-secret="Xm33q5aklA" 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://www.newsbeep.com/ie/wp-includes/js/wp-embed.min.js </script> https://www.newsbeep.com/ie/wp-content/uploads/2026/09/gammarus-pulex-stream-leaf-litter-768x403.jpg600315