{"id":51894,"date":"2020-07-22T18:37:51","date_gmt":"2020-07-22T18:37:51","guid":{"rendered":"https:\/\/baleinesendirect.org\/les-baleines-sont-elles-diurnes-ou-nocturnes\/"},"modified":"2020-07-28T15:43:06","modified_gmt":"2020-07-28T15:43:06","slug":"are-whales-diurnal-or-nocturnal","status":"publish","type":"post","link":"https:\/\/baleinesendirect.org\/en\/are-whales-diurnal-or-nocturnal\/","title":{"rendered":"Are whales diurnal or nocturnal?"},"content":{"rendered":"<p align=\"JUSTIFY\">Within the animal kingdom, most species adjust their periods of sleep and activity according to a repeated 24-hour cycle called the circadian cycle. Some species are mainly active at night (<strong>nocturnal<\/strong>) \u2013 bats, owls and hedgehogs come to mind \u2013 while others are more active during the day (<strong>diurnal<\/strong>), including notably most primates.<\/p>\n<p align=\"JUSTIFY\">\u201cWhat about whales?\u201d often ask observers and photographers, who strive to maximize their chances of seeing these animals in action. Well, it&#8217;s not that simple. Given their unique living environment, marine mammals show us that the notion of sleep and the circadian cycle is quite relative.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Within the animal kingdom, most species adjust their periods of sleep and activity according to a repeated 24-hour cycle called the circadian cycle. Some species are mainly active at night (nocturnal) \u2013 bats, owls and hedgehogs come to mind \u2013 while others are more active during the day (diurnal), including notably most primates. \u201cWhat about [&hellip;]<\/p>\n","protected":false},"author":31,"featured_media":51821,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[29],"tags":[583,956,536,1640,1430,729,1431],"class_list":["post-51894","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-whale-qa","tag-behaviour","tag-behaviourfeedingsleeping","tag-comportement-en","tag-night","tag-nuit-en","tag-physiology","tag-sommeil-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Are whales diurnal or nocturnal? - Baleines en direct<\/title>\n<meta name=\"description\" content=\"Given their unique living environment, marine mammals show us that the notion of sleep and the circadian cycle is quite relative.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/baleinesendirect.org\/en\/are-whales-diurnal-or-nocturnal\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Are whales diurnal or nocturnal? 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