{"id":119355,"date":"2025-08-04T23:09:12","date_gmt":"2025-08-04T23:09:12","guid":{"rendered":"https:\/\/www.europesays.com\/us\/119355\/"},"modified":"2025-08-04T23:09:12","modified_gmt":"2025-08-04T23:09:12","slug":"scientists-have-figured-out-why-hammerheads-love-eating-other-sharks","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/us\/119355\/","title":{"rendered":"Scientists Have Figured Out Why Hammerheads Love Eating Other Sharks"},"content":{"rendered":"

The hammerhead shark<\/a> doesn\u2019t always get the respect it deserves. Thanks to their cartoonishly distanced eyes, they typically have a blind spot in front of their snout where schools of fish can safely congregate. Fin placement often leads to a peculiar tilt to their bodies while swimming. They are, in short, nature\u2019s goofballs.<\/p>\n

    \n
  1. A Shark-Eat-Shark World<\/a><\/li>\n
  2. Why the Data Is Important<\/a><\/li>\n<\/ol>\n

    While they may be funny-looking, hammerheads practice a high-stakes game of hunting other shark species\u2014an urge that hasn\u2019t been well understood by science until now.<\/p>\n

    A Shark-Eat-Shark World<\/p>\n

    In a new study<\/a> published in the journal Oecologia, scientists at Florida International University are disclosing new information about the dietary habits of hammerheads. While most shark species stick to a diet of relatively small and frequent portions, hammerheads tend to seek out <\/a>large blacktip sharks, rays, and barracudas that require considerable energy to pursue and digest. (A hammerhead might weigh 250 pounds; a blacktip, 55 pounds.) Researchers wanted to know: Why go through all that extra trouble?<\/p>\n

    To get answers, nine hammerheads off the Gulf and Atlantic coasts in Florida were detained and equipped with biologging sensors that measure a shark\u2019s swimming speed and location. Cameras were able capture video of their environment. They were then returned to the water, where researchers could monitor the hammerhead\u2019s predatory activities and track their metabolic rate.<\/p>\n

    While hunting down blacktip sharks did demand a lot of energy, the pay-off was well worth it. Cornering a 55-pound blacktip, which amounts to roughly 20 to 25 percent of its own body weight, means that a hammerhead can meet its energy requirements for the next three weeks. That lump sum of metabolic effort is less than continuous energy spent chasing and eating much smaller reef prey on a near-daily or daily basis.<\/p>\n

    When food is especially scarce, it\u2019s even possible that one blacktip binge meal could sustain a hammerhead for two months, providing it supplemented with daily feedings of tiny (0.5 pound) fish. Hammerheads also tend to forage in a timely manner, hunting blacktips in winter when the species is more abundant and thus easier to locate.<\/p>\n

    Why the Data Is Important<\/p>\n

    Great hammerhead sharks are classified as a critically endangered species, which makes understanding their survival needs vital to coming up with conservation strategies.<\/p>\n

    \u201cIn order to help protect critically endangered species like great hammerheads, we need to understand their underlying biology and how they interact with their environment,\u201d marine ecologist and study co-author, Erin Spencer, PhD, said<\/a> in a statement. \u201cIt’s important that we continue to study these big questions, especially in the face of a changing ocean.\u201d<\/p>\n

    \"SCALLOPEDThese sharks have bigger fish to fry. | Gerard Soury\/GettyImages<\/p>\n

    The research was also successful in measuring traditionally difficult marine species. Unlike land animals, observing aquatic wildlife can be a logistical nightmare. Biologging\u2014in this case, with sensors attached to the shark\u2019s dorsal fin\u2014can provide quality data on metabolic needs. It\u2019s evidence that hammerheads use energy wisely in consuming 25 percent of their own mass at once, as compared to shark species that might consume 5 percent or less.<\/p>\n

    This isn\u2019t FIU\u2019s first exploration of hammerheads. In 2024, researchers found<\/a> that a species of hammerhead, the scalloped bonnethead, stuck to certain areas off the Colombian coastline. By isolating their geographical preferences, it\u2019s possible for conservationists to propose protected areas dubbed \u201cno-take zones\u201d where the species cannot be captured or removed.<\/p>\n

    Hammerheads can still show up in unexpected places. In June, one bonnethead dropped from the sky<\/a> onto a disc golf course in Myrtle Beach, South Carolina. An osprey had dropped it after being attacked by two crows.<\/p>\n

    Bite Into More Shark Stories:<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"The hammerhead shark doesn\u2019t always get the respect it deserves. Thanks to their cartoonishly distanced eyes, they typically…\n","protected":false},"author":3,"featured_media":119356,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[27],"tags":[159,67,132,68,837],"class_list":{"0":"post-119355","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-wildlife","8":"tag-science","9":"tag-united-states","10":"tag-unitedstates","11":"tag-us","12":"tag-wildlife"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@us\/114973020478190243","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/posts\/119355","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/comments?post=119355"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/posts\/119355\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/media\/119356"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/media?parent=119355"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/categories?post=119355"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/tags?post=119355"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}