/channels/news_feeds/all/term/Simon%20Reader/rss en /channels/channels/news/male-guppies-grow-larger-brains-response-predator-exposure-287497 <div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p><span>Male guppies exposed to predators in the wild or in captivity have heavier brains than those living in relatively predator-free conditions, according to new research published in the journal <em>Functional Ecology</em>.</span></p> <p>Behavioural ecologists at 9IÖÆ×÷³§Ãâ·Ñ in Montreal sampled guppies from two rivers in northern Trinidad. In each river, guppies live both above a waterfall, a location that only guppies and a few other small species of fish have managed to colonize, and below the fall, where many predators including pike cichlids live.</p></div></div></div><div class="field field-name-field-primary-image field-type-image field-label-hidden"><div class="field-items"><div class="field-item even"><img class="no-float" src="/channels/files/channels/styles/wysiwyg_medium/public/channels/image/guppies_2.jpg?itok=iK5u2zJX" width="160" height="107" alt="" /></div></div></div><div class="field field-name-field-published-date field-type-datestamp field-label-hidden"><div class="field-items"><div class="field-item even"><div class="custom-multi-date"><div class="multi-date first"><span class="label">Published: </span><span class="day">4 </span><span class="month">June </span><span class="year">2018</span></div></div></div></div></div> Tue, 05 Jun 2018 00:48:19 +0000 webfull 138364 at /channels /channels/news/parasites-and-evolution-primate-culture-240528 <div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>Learning from others and innovation have undoubtedly helped advance civilization. But these behaviours can carry costs as well as benefits. And a new study by an international team of evolutionary biologists sheds light on how one particular cost – increased exposure to parasites – may affect cultural evolution in non-human primates.</div></div></div><div class="field field-name-field-primary-image field-type-image field-label-hidden"><div class="field-items"><div class="field-item even"><img class="no-float" src="/channels/files/channels/styles/wysiwyg_medium/public/channels/image/chimps.png?itok=uy8cI8uw" width="160" height="107" /></div></div></div><div class="field field-name-field-published-date field-type-datestamp field-label-hidden"><div class="field-items"><div class="field-item even"><div class="custom-multi-date"><div class="multi-date first"><span class="label">Published: </span><span class="day">3 </span><span class="month">December </span><span class="year">2014</span></div></div></div></div></div> Wed, 03 Dec 2014 15:15:17 +0000 webfull 106917 at /channels