{"id":57738,"date":"2026-03-22T06:57:20","date_gmt":"2026-03-22T10:57:20","guid":{"rendered":"https:\/\/newssprinters.com\/index.php\/world\/dolphins-tell-humans-when-to-cast\/22\/03\/2026\/"},"modified":"2026-03-22T06:57:20","modified_gmt":"2026-03-22T10:57:20","slug":"dolphins-tell-humans-when-to-cast","status":"publish","type":"post","link":"https:\/\/newssprinters.com\/index.php\/world\/dolphins-tell-humans-when-to-cast\/22\/03\/2026\/","title":{"rendered":"Dolphins Tell Humans When to Cast"},"content":{"rendered":"<p>\n<\/p>\n<div data-article-body=\"true\">\n<p class=\"mb-4 text-lg md:leading-8 break-words\">The post <a href=\"https:\/\/a-z-animals.com\/articles\/teamwork-at-sea-dolphins-tell-humans-when-to-cast\/\" rel=\"nofollow noopener\" target=\"_blank\" data-ylk=\"slk:Teamwork at Sea: Dolphins Tell Humans When to Cast;elm:context_link;itc:0;sec:content-canvas\" data-yga=\"{&quot;yLinkElement&quot;:&quot;context_link&quot;,&quot;yModuleName&quot;:&quot;content-canvas&quot;,&quot;yLinkText&quot;:&quot;Teamwork at Sea&quot;}\" class=\"link \">Teamwork at Sea: Dolphins Tell Humans When to Cast<\/a> appeared first on <a href=\"https:\/\/a-z-animals.com?utm_campaign=feed&amp;utm_source=rss_feed&amp;utm_medium=feed&amp;utm_content=1552981\" rel=\"nofollow noopener\" target=\"_blank\" data-ylk=\"slk:A-Z Animals;elm:context_link;itc:0;sec:content-canvas\" data-yga=\"{&quot;yLinkElement&quot;:&quot;context_link&quot;,&quot;yModuleName&quot;:&quot;content-canvas&quot;,&quot;yLinkText&quot;:&quot;A-Z Animals&quot;}\" class=\"link \">A-Z Animals<\/a>.<\/p>\n<h2 class=\"mb-4 text-xl font-bold md:text-2xl\">Quick Take<\/h2>\n<ul class=\"mb-4\">\n<li class=\"ml-4 list-disc\">\n<div class=\"\">\n<p class=\"mb-4 text-lg md:leading-8 break-words\">Fishers in Brazil partner with<strong> Lahille\u2019s bottlenose dolphins<\/strong> to catch mullet more efficiently.<\/p>\n<\/div>\n<\/li>\n<li class=\"ml-4 list-disc\">\n<div class=\"\">\n<p class=\"mb-4 text-lg md:leading-8 break-words\">Dolphins herd fish and <strong>signal when to cast nets<\/strong>, benefiting both species.<\/p>\n<\/div>\n<\/li>\n<li class=\"ml-4 list-disc\">\n<div class=\"\">\n<p class=\"mb-4 text-lg md:leading-8 break-words\"><strong>Collaborative fishing<\/strong> boosts catches by up to <strong>4x<\/strong> and improves dolphin survival.<\/p>\n<\/div>\n<\/li>\n<li class=\"ml-4 list-disc\">\n<div class=\"\">\n<p class=\"mb-4 text-lg md:leading-8 break-words\"><strong>Declining mullet populations<\/strong> threaten this rare human-wildlife relationship.<\/p>\n<\/div>\n<\/li>\n<\/ul>\n<p class=\"mb-4 text-lg md:leading-8 break-words\">For over 140 years, traditional fishers in Laguna, Brazil, have hunted for fish as they work together with local Lahille\u2019s bottlenose dolphins. In a rare case of mutualism between humans and wild animals, the dolphins and the fishers both benefit from this cooperative relationship. It\u2019s one of only three instances that remain where humans collaborate with wild species.<\/p>\n<figure class=\"relative mb-4\">\n<div class=\"relative\"><button aria-label=\"View larger image\" class=\"group absolute bottom-0 size-full\" data-ylk=\"elm:expand;itc:1;sec:image-lightbox;slk:lightbox-open;\"><span class=\"absolute bottom-3 right-3 rounded-full bg-white p-3 opacity-100 shadow-elevation-3 transition-opacity duration-300 group-hover:block group-hover:opacity-100 md:p-[17px] lg:bottom-6 lg:right-6 lg:bg-white\/90 lg:p-5 lg:opacity-0 lg:shadow-none\"><svg viewbox=\"0 0 22 22\" aria-hidden=\"true\" class=\"size-4 lg:size-6\" width=\"22\" height=\"22\"><path d=\"M12.372.92c0-.506.41-.916.915-.916L21 0l-.004 7.712a.917.917 0 0 1-1.832 0V3.183l-6.827 6.828-1.349-1.348 6.828-6.828h-4.529a.915.915 0 0 1-.915-.915M1.835 17.816l6.828-6.828 1.349 1.349-6.829 6.827h4.529a.915.915 0 0 1 0 1.831L0 21l.004-7.713a.916.916 0 0 1 1.831 0z\"\/><\/svg><\/span><\/button><dialog aria-label=\"Modal Dialog\" aria-modal=\"true\" class=\"fixed bottom-0 left-0 right-0 top-0 z-4 size-full max-h-none max-w-none bg-white hidden\"\/><\/div><figcaption class=\"relative text-sm mt-1 pr-2.5\">\n<div style=\"max-height:none;overflow:visible\">\n<div>\n<p>Bottlenose dolphins are incredibly intelligent and socially complex animals.<\/p>\n<p class=\"copyright\">\u00a9RMMPPhotography\/Shutterstock.com<\/p>\n<\/div>\n<p><span>(RMMPPhotography\/Shutterstock.com)<\/span><\/div>\n<\/figcaption><\/figure>\n<h2 class=\"mb-4 text-xl font-bold md:text-2xl\">The Dolphin Herders of Laguna<\/h2>\n<p class=\"mb-4 text-lg md:leading-8 break-words\">From May to July, <a href=\"https:\/\/a-z-animals.com\/animals\/mullet-fish\/?utm_campaign=feed&amp;utm_source=rss_feed&amp;utm_medium=in_content&amp;utm_content=1552981\" rel=\"nofollow noopener\" target=\"_blank\" data-ylk=\"slk:mullet fish;elm:context_link;itc:0;sec:content-canvas\" data-yga=\"{&quot;yLinkElement&quot;:&quot;context_link&quot;,&quot;yModuleName&quot;:&quot;content-canvas&quot;,&quot;yLinkText&quot;:&quot;mullet fish&quot;}\" class=\"link \">mullet fish<\/a> migrate north during their spawning season from shallow lagoons to colder waters along the coast of southern Brazil. The fishers catch the fish in shallow waters using large nets that they cast out into the canals. But seeing the fish through the murky water is nearly impossible. The fishers who rely on help from their dolphin guides have much better luck catching fish than those that do not.<\/p>\n<p class=\"mb-4 text-lg md:leading-8 break-words\">The dolphins round the mullet towards the shore where the fishers stand with their nets. Once the fish are pushed toward the coast, the dolphins dive in a signal to the fishers. The fishers benefit by easily catching large schools of mullet, while the dolphins benefit by grabbing stray fish from the nets. Both parties get more fish by cooperating with each other than they would on their own.<\/p>\n<p class=\"mb-4 text-lg md:leading-8 break-words\">The fishers pass down this human-dolphin fishing knowledge from generation to generation. Scientists wondered if, in a similar fashion, generations of dolphins were passing down the knowledge to their young.<\/p>\n<h2 class=\"mb-4 text-xl font-bold md:text-2xl\">What Scientists Discovered About the Relationship Between Humans and Dolphins<\/h2>\n<p class=\"mb-4 text-lg md:leading-8 break-words\">Scientists knew the fishers were watching the dolphins for signals to throw their nets. But what they were unsure of was whether or not the dolphins were acting on purpose. Did the dolphins know what they were doing? A <a href=\"https:\/\/www.pnas.org\/doi\/abs\/10.1073\/pnas.2207739120\" rel=\"nofollow noopener\" target=\"_blank\" data-ylk=\"slk:recent study;elm:context_link;itc:0;sec:content-canvas\" data-yga=\"{&quot;yLinkElement&quot;:&quot;context_link&quot;,&quot;yModuleName&quot;:&quot;content-canvas&quot;,&quot;yLinkText&quot;:&quot;recent study&quot;}\" class=\"link \">recent study<\/a> observing 65 dolphins found that over 40 were collaborating with the fishers.<\/p>\n<figure class=\"relative mb-4\">\n<div class=\"relative\"><img alt=\"bottlenose dolphin jumping out of the water\" loading=\"lazy\" width=\"960\" height=\"502\" decoding=\"async\" data-nimg=\"1\" class=\"rounded-lg\" style=\"color:transparent\" src=\"https:\/\/s.yimg.com\/ny\/api\/res\/1.2\/BaqeLFRna1sBFlGmcUX7dA--\/YXBwaWQ9aGlnaGxhbmRlcjt3PTk2MDtoPTUwMjtjZj13ZWJw\/https:\/\/media.zenfs.com\/en\/a_z_animals_articles_598\/e47581c10bff2d585625f5d42dc2e621\"\/><button aria-label=\"View larger image\" class=\"group absolute bottom-0 size-full\" data-ylk=\"elm:expand;itc:1;sec:image-lightbox;slk:lightbox-open;\"><span class=\"absolute bottom-3 right-3 rounded-full bg-white p-3 opacity-100 shadow-elevation-3 transition-opacity duration-300 group-hover:block group-hover:opacity-100 md:p-[17px] lg:bottom-6 lg:right-6 lg:bg-white\/90 lg:p-5 lg:opacity-0 lg:shadow-none\"><svg viewbox=\"0 0 22 22\" aria-hidden=\"true\" class=\"size-4 lg:size-6\" width=\"22\" height=\"22\"><path d=\"M12.372.92c0-.506.41-.916.915-.916L21 0l-.004 7.712a.917.917 0 0 1-1.832 0V3.183l-6.827 6.828-1.349-1.348 6.828-6.828h-4.529a.915.915 0 0 1-.915-.915M1.835 17.816l6.828-6.828 1.349 1.349-6.829 6.827h4.529a.915.915 0 0 1 0 1.831L0 21l.004-7.713a.916.916 0 0 1 1.831 0z\"\/><\/svg><\/span><\/button><dialog aria-label=\"Modal Dialog\" aria-modal=\"true\" class=\"fixed bottom-0 left-0 right-0 top-0 z-4 size-full max-h-none max-w-none bg-white hidden\"\/><\/div><figcaption class=\"relative text-sm mt-1 pr-2.5\">\n<div style=\"max-height:none;overflow:visible\">\n<div>\n<p>Lahille\u2019s dolphins are a subspecies of the common bottlenose dolphin that is seen here.<\/p>\n<p class=\"copyright\">\u00a9Tory Kallman\/Shutterstock.com<\/p>\n<\/div>\n<p><span>(Tory Kallman\/Shutterstock.com)<\/span><\/div>\n<\/figcaption><\/figure>\n<p class=\"mb-4 text-lg md:leading-8 break-words\">Author of the study, and biologist, Mauricio Cantor, said in a <a href=\"https:\/\/news.oregonstate.edu\/news\/fishing-synchrony-brings-mutual-benefits-dolphins-and-people-brazil-research-shows#:~:text=They%20found%20that%20foraging%20synchrony,this%20case%2C%E2%80%9D%20Farine%20said.\" rel=\"nofollow noopener\" target=\"_blank\" data-ylk=\"slk:statement;elm:context_link;itc:0;sec:content-canvas\" data-yga=\"{&quot;yLinkElement&quot;:&quot;context_link&quot;,&quot;yModuleName&quot;:&quot;content-canvas&quot;,&quot;yLinkText&quot;:&quot;statement&quot;}\" class=\"link \">statement<\/a>, \u201cWe knew that the fishers were observing the dolphins\u2019 behavior to determine when to cast their nets, but we didn\u2019t know if the dolphins were actively coordinating their behavior with the fishers.\u201d He continued, \u201cUsing drones and underwater imaging, we could observe the behaviors of fishers and dolphins with unprecedented detail and found that they catch more fish by working in synchrony. This shows that this is a mutually beneficial interaction between the humans and the dolphins.\u201d<\/p>\n<h2 class=\"mb-4 text-xl font-bold md:text-2xl\">Both Humans and Dolphins Benefit<\/h2>\n<p class=\"mb-4 text-lg md:leading-8 break-words\">The research showed that 86% of the mullet caught by the fishers were from a collaborative hunt with the dolphins. In fact, when dolphins were around, the fishers caught nearly four times as many fish as when they were absent. And they were more than 17 times likely to catch fish at all. Likewise, the dolphins that participated with the fishers had a 13% higher survival rate than individuals that did not.<\/p>\n<h2 class=\"mb-4 text-xl font-bold md:text-2xl\">About Lahille\u2019s Bottlenose Dolphins<\/h2>\n<p class=\"mb-4 text-lg md:leading-8 break-words\">Lahille\u2019s bottlenose dolphins (<em>Tursiops truncatus gephyreus<\/em>) are a subspecies of the <a href=\"https:\/\/a-z-animals.com\/animals\/bottlenose-dolphin\/?utm_campaign=feed&amp;utm_source=rss_feed&amp;utm_medium=in_content&amp;utm_content=1552981\" rel=\"nofollow noopener\" target=\"_blank\" data-ylk=\"slk:common bottlenose dolphin;elm:context_link;itc:0;sec:content-canvas\" data-yga=\"{&quot;yLinkElement&quot;:&quot;context_link&quot;,&quot;yModuleName&quot;:&quot;content-canvas&quot;,&quot;yLinkText&quot;:&quot;common bottlenose dolphin&quot;}\" class=\"link \">common bottlenose dolphin<\/a>. Lahille\u2019s dolphins live to be around 50 years old, and travel together in social groups of about five individuals. They grow to be about 13 feet long and can weigh up to 880 pounds.<\/p>\n<p class=\"mb-4 text-lg md:leading-8 break-words\">Scientists estimate there are around 400 to 600 individuals remaining. They only live along the Atlantic coast of South America. Lahille\u2019s dolphins are classified as endangered and are vulnerable to climate change, pollution, and bycatch by fisheries.<\/p>\n<p class=\"mb-4 text-lg md:leading-8 break-words\">Like other dolphin species, Lahille\u2019s dolphins are incredibly intelligent. Dolphins\u2019 brains contain specialized brain cells called spindle neurons, which are only found in humans, primates, and several large-brained mammals. Dolphins have been observed using tools, communicating with each other through vocalizations, and working together to hunt fish.<\/p>\n<h2 class=\"mb-4 text-xl font-bold md:text-2xl\">A Shortage of Mullet Fish Threatens the Collaboration<\/h2>\n<p class=\"mb-4 text-lg md:leading-8 break-words\">The mullet fish caught only in the summer is incredibly important to the economy of Laguna. Along with a few other species, the catches of mullet may account for up to 70% of a fisher\u2019s annual income. Unfortunately, the <a href=\"https:\/\/mag.hookandnet.com\/2022\/07\/07\/2022-07tainhaeng\/content.html#:~:text=A%20vital%20commercial%20species%20in,annual%20income%20of%20artisanal%20fishermen.\" rel=\"nofollow noopener\" target=\"_blank\" data-ylk=\"slk:mullet fish are in decline;elm:context_link;itc:0;sec:content-canvas\" data-yga=\"{&quot;yLinkElement&quot;:&quot;context_link&quot;,&quot;yModuleName&quot;:&quot;content-canvas&quot;,&quot;yLinkText&quot;:&quot;mullet fish are in decline&quot;}\" class=\"link \">mullet fish are in decline<\/a>, threatening the livelihoods of the fishers and the collaborative relationship between humans and dolphins.<\/p>\n<h2 class=\"mb-4 text-xl font-bold md:text-2xl\">Human-Wildlife Cooperation Is Declining Around the World<\/h2>\n<figure class=\"relative mb-4\">\n<div class=\"relative\"><img alt=\"Honey bees and queen bee on honeycomb work together in hive\" loading=\"lazy\" width=\"960\" height=\"639\" decoding=\"async\" data-nimg=\"1\" class=\"rounded-lg\" style=\"color:transparent\" src=\"https:\/\/s.yimg.com\/ny\/api\/res\/1.2\/O2WQIXAzEGUNs7_P69IhHQ--\/YXBwaWQ9aGlnaGxhbmRlcjt3PTk2MDtoPTYzOTtjZj13ZWJw\/https:\/\/media.zenfs.com\/en\/a_z_animals_articles_598\/8196aaf8eb46f27e3503541b179c1396\"\/><button aria-label=\"View larger image\" class=\"group absolute bottom-0 size-full\" data-ylk=\"elm:expand;itc:1;sec:image-lightbox;slk:lightbox-open;\"><span class=\"absolute bottom-3 right-3 rounded-full bg-white p-3 opacity-100 shadow-elevation-3 transition-opacity duration-300 group-hover:block group-hover:opacity-100 md:p-[17px] lg:bottom-6 lg:right-6 lg:bg-white\/90 lg:p-5 lg:opacity-0 lg:shadow-none\"><svg viewbox=\"0 0 22 22\" aria-hidden=\"true\" class=\"size-4 lg:size-6\" width=\"22\" height=\"22\"><path d=\"M12.372.92c0-.506.41-.916.915-.916L21 0l-.004 7.712a.917.917 0 0 1-1.832 0V3.183l-6.827 6.828-1.349-1.348 6.828-6.828h-4.529a.915.915 0 0 1-.915-.915M1.835 17.816l6.828-6.828 1.349 1.349-6.829 6.827h4.529a.915.915 0 0 1 0 1.831L0 21l.004-7.713a.916.916 0 0 1 1.831 0z\"\/><\/svg><\/span><\/button><dialog aria-label=\"Modal Dialog\" aria-modal=\"true\" class=\"fixed bottom-0 left-0 right-0 top-0 z-4 size-full max-h-none max-w-none bg-white hidden\"\/><\/div><figcaption class=\"relative text-sm mt-1 pr-2.5\">\n<div style=\"max-height:none;overflow:visible\">\n<div>\n<p>Honeyguides are birds that guide humans in sub-Saharan Africa to find bee nests filled with honey.<\/p>\n<p class=\"copyright\">\u00a9PHOTOCREO Michal Bednarek\/Shutterstock.com<\/p>\n<\/div>\n<p><span>(PHOTOCREO Michal Bednarek\/Shutterstock.com)<\/span><\/div>\n<\/figcaption><\/figure>\n<p class=\"mb-4 text-lg md:leading-8 break-words\">Humans once hunted with wolves and orcas. In fact, scientists are aware of six known instances of human-wild animal mutualism. Today, there are three known cases of cooperation between humans and wild animals. In addition to the dolphin herders of Brazil, Irrawaddy dolphins and local fishers in Myanmar also hunt cooperatively for fish. The third instance is the honey hunters of sub-Saharan Africa who hunt for honey in trees by following <a href=\"https:\/\/a-z-animals.com\/articles\/the-ancient-honey-hunting-tradition-that-depends-on-a-wild-bird\/?utm_campaign=feed&amp;utm_source=rss_feed&amp;utm_medium=in_content&amp;utm_content=1552981\" rel=\"nofollow noopener\" target=\"_blank\" data-ylk=\"slk:honeyguides;elm:context_link;itc:0;sec:content-canvas\" data-yga=\"{&quot;yLinkElement&quot;:&quot;context_link&quot;,&quot;yModuleName&quot;:&quot;content-canvas&quot;,&quot;yLinkText&quot;:&quot;honeyguides&quot;}\" class=\"link \">honeyguides<\/a>. At the end of the hunt, the birds get to eat the leftover wax from the honeycomb.<\/p>\n<p class=\"mb-4 text-lg md:leading-8 break-words\">Cantor said, \u201cThis phenomenon of mutually beneficial interaction between wildlife and humans is getting more and more rare and seems to be at global risk. The cultural value and the biological diversity are important, and it\u2019s important to preserve it.\u201d<\/p>\n<p class=\"mb-4 text-lg md:leading-8 break-words\">The post <a href=\"https:\/\/a-z-animals.com\/articles\/teamwork-at-sea-dolphins-tell-humans-when-to-cast\/\" rel=\"nofollow noopener\" target=\"_blank\" data-ylk=\"slk:Teamwork at Sea: Dolphins Tell Humans When to Cast;elm:context_link;itc:0;sec:content-canvas\" data-yga=\"{&quot;yLinkElement&quot;:&quot;context_link&quot;,&quot;yModuleName&quot;:&quot;content-canvas&quot;,&quot;yLinkText&quot;:&quot;Teamwork at Sea&quot;}\" class=\"link \">Teamwork at Sea: Dolphins Tell Humans When to Cast<\/a> appeared first on <a href=\"https:\/\/a-z-animals.com?utm_campaign=feed&amp;utm_source=rss_feed&amp;utm_medium=feed&amp;utm_content=1552981\" rel=\"nofollow noopener\" target=\"_blank\" data-ylk=\"slk:A-Z Animals;elm:context_link;itc:0;sec:content-canvas\" data-yga=\"{&quot;yLinkElement&quot;:&quot;context_link&quot;,&quot;yModuleName&quot;:&quot;content-canvas&quot;,&quot;yLinkText&quot;:&quot;A-Z Animals&quot;}\" class=\"link \">A-Z Animals<\/a>.<\/p>\n<\/div>\n<p><a href=\"https:\/\/www.yahoo.com\/lifestyle\/articles\/teamwork-sea-dolphins-tell-humans-100000907.html\" target=\"_blank\" rel=\"noopener nofollow\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The post Teamwork at Sea: Dolphins Tell Humans When to Cast appeared first on A-Z Animals. Quick Take Fishers in Brazil partner<br \/><button class=\"read-more\"><a href=\"https:\/\/newssprinters.com\/index.php\/world\/dolphins-tell-humans-when-to-cast\/22\/03\/2026\/\">Read More &rsaquo;<\/a><\/button><\/p>\n","protected":false},"author":1,"featured_media":57739,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"categories":[2],"tags":[],"fifu_image_url":"https:\/\/s.yimg.com\/ny\/api\/res\/1.2\/ctxd4hG3p5NtYYCBVlke6w--\/YXBwaWQ9aGlnaGxhbmRlcjt3PTEyMDA7aD04MDA7Y2Y9d2VicA--\/https:\/\/media.zenfs.com\/en\/a_z_animals_articles_598\/6bc51e177e42124c2c6ff1b40c507dad","_links":{"self":[{"href":"https:\/\/newssprinters.com\/index.php\/wp-json\/wp\/v2\/posts\/57738"}],"collection":[{"href":"https:\/\/newssprinters.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/newssprinters.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/newssprinters.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/newssprinters.com\/index.php\/wp-json\/wp\/v2\/comments?post=57738"}],"version-history":[{"count":0,"href":"https:\/\/newssprinters.com\/index.php\/wp-json\/wp\/v2\/posts\/57738\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/newssprinters.com\/index.php\/wp-json\/wp\/v2\/media\/57739"}],"wp:attachment":[{"href":"https:\/\/newssprinters.com\/index.php\/wp-json\/wp\/v2\/media?parent=57738"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/newssprinters.com\/index.php\/wp-json\/wp\/v2\/categories?post=57738"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/newssprinters.com\/index.php\/wp-json\/wp\/v2\/tags?post=57738"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}