{"id":27024,"date":"2021-05-27T10:23:24","date_gmt":"2021-05-27T14:23:24","guid":{"rendered":"https:\/\/antilla-martinique.com\/?p=27024"},"modified":"2021-05-27T10:23:24","modified_gmt":"2021-05-27T14:23:24","slug":"les-requins-utilisent-les-champs-magnetiques-terrestres-pour-se-diriger","status":"publish","type":"post","link":"https:\/\/antilla-martinique.com\/en\/les-requins-utilisent-les-champs-magnetiques-terrestres-pour-se-diriger\/","title":{"rendered":"Sharks use the Earth's magnetic field to navigate"},"content":{"rendered":"<div class=\"td-pb-row\">\n<div class=\"td-pb-span12\">\n<div class=\"td-post-header\">\n<header class=\"td-post-title\">\n<h1 class=\"entry-title\"><span style=\"font-size: 16px\">This allows them to always find their way back to their original home<\/span><\/h1>\n<\/header>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"td-pb-row\">\n<div class=\"td-pb-span8 td-main-content\" role=\"main\">\n<div class=\"td-ss-main-content\">\n<div class=\"clearfix\"><\/div>\n<div class=\"td-post-content\">\n<div class=\"wp-block-image td-caption-align-https:\/\/dailygeekshow.com\/wp-content\/uploads\/2021\/05\/une-requin-champs-magnetique.jpg\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" class=\"wp-image-748341 lazyloaded\" src=\"https:\/\/dailygeekshow.com\/wp-content\/uploads\/2021\/05\/une-requin-champs-magnetique-1024x576.jpg\" alt=\"\" data-srcset=\"https:\/\/dailygeekshow.com\/wp-content\/uploads\/2021\/05\/une-requin-champs-magnetique-1024x576.jpg 1024w, https:\/\/dailygeekshow.com\/wp-content\/uploads\/2021\/05\/une-requin-champs-magnetique-300x169.jpg 300w, https:\/\/dailygeekshow.com\/wp-content\/uploads\/2021\/05\/une-requin-champs-magnetique-768x432.jpg 768w, https:\/\/dailygeekshow.com\/wp-content\/uploads\/2021\/05\/une-requin-champs-magnetique-696x392.jpg 696w, https:\/\/dailygeekshow.com\/wp-content\/uploads\/2021\/05\/une-requin-champs-magnetique-1068x601.jpg 1068w, https:\/\/dailygeekshow.com\/wp-content\/uploads\/2021\/05\/une-requin-champs-magnetique-747x420.jpg 747w, https:\/\/dailygeekshow.com\/wp-content\/uploads\/2021\/05\/une-requin-champs-magnetique.jpg 1200w\" data-src=\"https:\/\/dailygeekshow.com\/wp-content\/uploads\/2021\/05\/une-requin-champs-magnetique-1024x576.jpg\" \/><figcaption>\u2014 kaschibo \/ Shutterstock.com<\/figcaption><\/figure>\n<\/div>\n<p><strong>Animals sometimes possess abilities worthy of the best works of science fiction. While it is common knowledge that dogs have an exceptional sense of smell and that cats can see in the dark, it has recently been discovered that sharks are able to find their way using the Earth\u2019s magnetic fields.<\/strong><\/p>\n<p>&nbsp;<\/p>\n<h2><strong>A NATURAL GPS THAT SHARKS HAVE IN COMMON WITH CARRIER PIGEONS AND DOLPHINS <\/strong><\/h2>\n<p>Scientists have long hypothesized that the <a href=\"https:\/\/dailygeekshow.com\/tag\/requin\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"sharks (opens in a new tab)\">sharks<\/a> may be able to use the Earth\u2019s magnetic fields to navigate the ocean when traveling very long distances. This theory has been confirmed by scientists at Florida State University, who can now confirm that it is no coincidence that sharks follow a particularly precise and direct path when migrating from one place to another. According to the researchers, the Earth\u2019s magnetic fields thus serve as a natural GPS for these animals.<\/p>\n<section class=\"incontent-related\"><\/section>\n<div class=\"sid centrer\">\n<div id=\"incontent_ad2\"><\/div>\n<h3 id=\"glxmPlayerTitle\"><\/h3>\n<div id=\"glxm-video-position\" class=\"glxm-video-main-position\">\n<div id=\"glxm-video-outer\">\n<div id=\"glxm-video-middle\" class=\"\">\n<div id=\"glxm-video-inner\">\n<p><iframe title=\"Is the Earth&#039;s magnetic field reversing?\" frameborder=\"0\" width=\"755\" height=\"424\" src=\"https:\/\/www.dailymotion.com\/embed\/video\/x5ahnsu?pubtool=oembed\" allowfullscreen allow=\"autoplay\"><\/iframe><\/p>\n<\/div>\n<p>To reach this conclusion, researchers tested 20 young tiburo hammerhead sharks for sensitivity to magnetic fields, according to a report <strong><a href=\"https:\/\/www.theguardian.com\/environment\/2021\/may\/17\/sharks-earth-magnetic-field-gps-guidance-system\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\" (opens in a new tab)\">The Guardian<\/a><\/strong>. One of the tests involved placing the sharks in a tank surrounded by copper wires that simulated magnetic fields. In total, the sharks were subjected to three different simulation configurations: one replicating the intensity and angle of the magnetic field in their native habitat, the second that of an area located 600 kilometers to the north, and the third that of an area 600 kilometers to the south. Observations during the tests revealed that during the first simulation, the sharks naturally headed north.<\/p>\n<p>During the second trial, they did not respond to the stimulus and moved in random directions. The researchers explained that this behavior was due to the fact that they had never been exposed to a similar magnetic configuration. It was when exposed to a simulation of the magnetic signal from a site located 600 kilometers south of where they were captured that they demonstrated they were indeed using these signals. In fact, it was observed that during this test, the sharks turned to swim north\u2014in other words, toward the direction that would lead them back to their original habitat.<\/p>\n<div class=\"wp-block-image td-caption-align-https:\/\/dailygeekshow.com\/wp-content\/uploads\/2021\/02\/une-requin-blanc.jpg\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" class=\"wp-image-737180 lazyloaded\" src=\"https:\/\/dailygeekshow.com\/wp-content\/uploads\/2021\/02\/une-requin-blanc-1024x576.jpg\" alt=\"\" data-srcset=\"https:\/\/dailygeekshow.com\/wp-content\/uploads\/2021\/02\/une-requin-blanc-1024x576.jpg 1024w, https:\/\/dailygeekshow.com\/wp-content\/uploads\/2021\/02\/une-requin-blanc-300x169.jpg 300w, https:\/\/dailygeekshow.com\/wp-content\/uploads\/2021\/02\/une-requin-blanc-768x432.jpg 768w, https:\/\/dailygeekshow.com\/wp-content\/uploads\/2021\/02\/une-requin-blanc-696x392.jpg 696w, https:\/\/dailygeekshow.com\/wp-content\/uploads\/2021\/02\/une-requin-blanc-1068x601.jpg 1068w, https:\/\/dailygeekshow.com\/wp-content\/uploads\/2021\/02\/une-requin-blanc-747x420.jpg 747w, https:\/\/dailygeekshow.com\/wp-content\/uploads\/2021\/02\/une-requin-blanc.jpg 1200w\" data-src=\"https:\/\/dailygeekshow.com\/wp-content\/uploads\/2021\/02\/une-requin-blanc-1024x576.jpg\" \/><figcaption>\u2014 Rajat Kreation \/ Shutterstock.com<\/figcaption><\/figure>\n<\/div>\n<h2><strong>A POSSIBLE IMPLICATION BEYOND SIMPLE GUIDANCE<\/strong><\/h2>\n<p>According to scientists, this study, published in the journal <strong><a href=\"https:\/\/www.cell.com\/current-biology\/fulltext\/S0960-9822(21)00476-0\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\" (opens in a new tab)\">Current Biology<\/a><\/strong> helps explain how sharks manage to return to the exact same spot every year to reproduce after traveling across vast oceans and over very long distances. \u00ab\u00a0<em>Until now, it had not been clear how sharks manage to navigate during their migrations to specific destinations. This research supports the theory that they use the Earth\u2019s magnetic fields to help them find their way; it\u2019s nature\u2019s GPS.<\/em>\u00a0\u00bb, said Bryan Keller, the study's lead author, in <a href=\"https:\/\/www.eurekalert.org\/pub_releases\/2021-05\/cp-sue042921.php\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\" (opens in a new tab)\">a press release<\/a>.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Cela leur permet de toujours retrouver leur lieu d&rsquo;habitation d&rsquo;origine \u2014 kaschibo \/ Shutterstock.com Les animaux sont parfois dot\u00e9s de capacit\u00e9s dignes des meilleures oeuvres de science-fiction. S\u2019il est de commune connaissance que les chiens sont dot\u00e9s d\u2019un odorat exceptionnel, ou que les chats peuvent voir dans le noir, il a r\u00e9cemment \u00e9t\u00e9 d\u00e9termin\u00e9 que<\/p>","protected":false},"author":33,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":"","rank_math_focus_keyword":"","rank_math_title":"","rank_math_description":"","rank_math_canonical_url":"","rank_math_robots":null,"rank_math_facebook_title":"","rank_math_facebook_description":"","rank_math_twitter_title":"","rank_math_twitter_description":""},"categories":[200],"tags":[],"class_list":["post-27024","post","type-post","status-publish","format-standard","category-ecologie"],"acf":[],"_links":{"self":[{"href":"https:\/\/antilla-martinique.com\/en\/wp-json\/wp\/v2\/posts\/27024","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/antilla-martinique.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/antilla-martinique.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/antilla-martinique.com\/en\/wp-json\/wp\/v2\/users\/33"}],"replies":[{"embeddable":true,"href":"https:\/\/antilla-martinique.com\/en\/wp-json\/wp\/v2\/comments?post=27024"}],"version-history":[{"count":0,"href":"https:\/\/antilla-martinique.com\/en\/wp-json\/wp\/v2\/posts\/27024\/revisions"}],"wp:attachment":[{"href":"https:\/\/antilla-martinique.com\/en\/wp-json\/wp\/v2\/media?parent=27024"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/antilla-martinique.com\/en\/wp-json\/wp\/v2\/categories?post=27024"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/antilla-martinique.com\/en\/wp-json\/wp\/v2\/tags?post=27024"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}