
Shark Photobomb: Nurse Shark Records Rare Great White Encounter
Marine biologists studying local sharks were stunned when a nurse shark's camera recorded a great ... More white photobombing their research.
Marine researchers often hope for surprises when tagging animals with cameras, but no one expected… well, this. Off the coast of Boynton Beach, Florida, a nurse shark (Ginglymostoma cirratum) unknowingly became the cinematographer for a rare appearance by a great white shark (Carcharodon carcharias) — possibly the first time one has ever been documented on video in South Florida waters from another shark's perspective. It's an underwater photobomb that has thrilled scientists and opened the door to new questions about where great whites travel and why.
Dr. Stephen Kajiura, a professor at Florida Atlantic University's Charles E. Schmidt College of Science, has been tracking and studying sharks in Palm Beach County for years. His team's work has focused on blacktip sharks (Carcharhinus limbatus), lemon sharks (Negaprion brevirostris) and hammerheads, especially during their seasonal migrations. They've built a detailed understanding of where and when these species travel along the Florida coast.
But this latest footage was a curveball no one saw coming.
The research team had equipped a nurse shark with a bright orange camera tag, a piece of technology that is routinely attached to the dorsal fin, left to record the animal's natural behavior, then pop off at a set time to be collected. This one logged both video and motion data, kind of like a FitBit, but for fish. It's not new tech for Kajiura's team. What was new was what they saw when they reviewed the video: a ten-foot-long (3 meters) great white shark swimming casually into view and interacting with the tagged nurse shark near Donny Boy Slipe Reef, an artificial reef structure made of over 800 tons of limestone boulders.
'While divers have reported seeing great whites here recently, this rare footage gives us a shark's-eye view of the interactions between these two very different kinds of sharks,' said Kajiura. The clip shows the two sharks swimming together for about four minutes. The team jokingly dubbed it a 'shark photobomb,' but it's more than just a funny moment — it's a unique record of a rarely seen predator in an unexpected place.
The excitement of the footage was nearly overshadowed by the panic of possibly losing it. When the tag failed to ping its location after detaching, Kajiura feared it was lost to the sea. 'At that point, the chances of getting the tag back were slim,' he said. But four days later, luck stepped in. A signal came through, revealing the tag had floated ashore at Gulfstream Golf Club in Delray Beach. Kajiura found it nestled in a pile of seaweed, mere inches away from the tire tracks of a large beach tractor. 'We were incredibly lucky it didn't get run over and crushed!'
A nurse shark wearing a camera tag off Boynton Beach captured rare footage of a great white shark, ... More marking a possible first for South Florida waters.
Among the research team members is Genevieve Sylvester, a master's student working in FAU's Elasmo Lab under Kajiura's direction. 'What we captured on that footage was a completely unexpected surprise,' she said. She recalled the moment they watched the footage together for the first time: 'We were all huddled around my computer. When we saw the great white shark appear — more than once — we couldn't believe it. To witness it from the shark's point of view made it even more surreal. It was truly an unforgettable moment for our entire team.'
The footage is part of a broader effort by Kajiura's team to learn more about shark behavior in South Florida's coastal waters. While the nurse shark may have unintentionally become an underwater filmmaker, the researchers are hoping to capture more valuable footage with this method. They plan to tag more sharks, including great hammerheads (Sphyrna mokarran) and lemon sharks, to gather even more data on how these species use artificial reefs and how they interact with one another. Kajiura says this is just the beginning. The unexpected encounter has only deepend their interest in exploring South Florida's underwater world. With continued support from organizations like the Colgan Foundation, which has backed Kajiura's research over the long term, the team is ready to tag more sharks and see what other surprises the ocean has in store.
'Stay tuned. There is much more to come,' Kajiura said. 'This is just the beginning of an incredible journey.'
Hashtags

Try Our AI Features
Explore what Daily8 AI can do for you:
Comments
No comments yet...
Related Articles


Forbes
5 days ago
- Forbes
Shark Skeletons Aren't Bones. They're Blueprints.
Blacktips are medium-sized coastal sharks commonly found in warm, shallow waters around the world, ... More including the Gulf of Mexico, the Caribbean, and parts of the Indian and Pacific Oceans. Sharks don't have bones. Instead, their skeletons are made from mineralized cartilage, an adaptation that has helped these predators move through the oceans for over 400 million years. A new study takes a deeper look — quite literally — at how this cartilage works. Using a combination of high-resolution 3D imaging and in-situ mechanical testing, a global team of scientists have mapped out the internal structure of shark cartilage and found it to be much more complex than it appears on the surface. The findings not only help explain how sharks maintain their strength and flexibility, but also open the door for developing tough, adaptable materials based on nature's own engineering. The research focused on blacktip sharks (Carcharhinus limbatus) and involved a collaboration between the Charles E. Schmidt College of Science, the College of Engineering and Computer Science at Florida Atlantic University, the German Electron Synchrotron (DESY) in Germany, and NOAA Fisheries. Blacktips are medium-sized coastal sharks commonly found in warm, shallow waters around the world, including the Gulf of Mexico, the Caribbean, and parts of the Indian and Pacific Oceans. They typically grow to about 5 feet (1.5 meters) in length, though some individuals can reach up to 8 feet (2.4 meters). Named for the distinctive black markings on the tips of their dorsal, pelvic, and tail fins, blacktip sharks primarily eat small fish, squid, and crustaceans, using quick bursts of speed to chase down prey. The team zoomed in on their cartilage using synchrotron X-ray nanotomography, a powerful imaging technique that can reveal details down to the nanometer scale. What they found was that the cartilage wasn't uniform. In fact, it had two distinct regions, each with its own structure and purpose. One is called the 'corpus calcareum,' the outer mineralized layer, and the other is the 'intermediale,' the inner core. Both are made of densely packed collagen and bioapatite (the same mineral found in human bones). But while their chemical makeup is similar, their physical structures are not. In both regions, the cartilage was found to be full of pores and reinforced with thick struts, which help absorb pressure and strain from multiple directions. That's especially important for sharks, since they are constantly in motion. Their spines have to bend and flex without breaking as they swim. The cartilage, it turns out, acts almost like a spring. It stores energy as the shark's tail flexes, then releases that energy to power the next stroke. The scientists also noted the presence of tiny, needle-like crystals of bioapatite aligned with strands of collagen. This alignment increases the material's ability to resist damage. Researchers also noted helical fiber structures in the cartilage, the twisting patterns of collagen helping prevent cracks from spreading. These structures work together to distribute pressure and protect the skeleton from failure; this kind of layered, directional reinforcement is something human engineers have tried to mimic in synthetic materials, but nature has been perfecting it for hundreds of millions of years. The intermediale cartilage of a blacktip shark, with arrows highlighting the internal mineralized ... More network that supports and reinforces the structure. Dr. Vivian Merk, senior author of the study and an assistant professor in the FAU Department of Chemistry and Biochemistry, the FAU Department of Ocean and Mechanical Engineering, and the FAU Department of Biomedical Engineering, explained in a press release that this is a prime example of biomineralization: 'Nature builds remarkably strong materials by combining minerals with biological polymers, such as collagen – a process known as biomineralization. This strategy allows creatures like shrimp, crustaceans and even humans to develop tough, resilient skeletons. Sharks are a striking example. Their mineral-reinforced spines work like springs, flexing and storing energy as they swim.' Merk hopes that understanding how sharks pull this off can help inspire new materials that are both strong and flexible, perfect for medical implants, protective gear, or aerospace design. To test just how tough this cartilage really is, the team applied pressure to microscopic pieces of the shark's vertebrae. At first, they saw only slight deformations of less than one micrometer. Only after applying pressure a second time did they observe fractures, and even then, the damage stayed confined to a single mineralized layer, hinting at the material's built-in resistance to catastrophic failure. 'After hundreds of millions of years of evolution, we can now finally see how shark cartilage works at the nanoscale – and learn from them,' said Dr. Marianne Porter, co-author and an associate professor in the FAU Department of Biological Sciences. 'We're discovering how tiny mineral structures and collagen fibers come together to create a material that's both strong and flexible, perfectly adapted for a shark's powerful swimming. These insights could help us design better materials by following nature's blueprint.' Dr. Stella Batalama, dean of the College of Engineering and Computer Science, agreed: 'This research highlights the power of interdisciplinary collaboration. By bringing together engineers, biologists and materials scientists, we've uncovered how nature builds strong yet flexible materials. The layered, fiber-reinforced structure of shark cartilage offers a compelling model for high-performance, resilient design, which holds promise for developing advanced materials from medical implants to impact-resistant gear.' This research was supported by a National Science Foundation grant awarded to Merk; an NSF CAREER Award, awarded to Porter; and seed funding from the FAU College of Engineering and Computer Science and FAU Sensing Institute (I-SENSE). The acquisition of a transmission electron microscope was supported by a United States Department of Defense instrumentation/equipment grant awarded to Merk.
Yahoo
6 days ago
- Yahoo
Researchers warn of widespread issue throughout Earth's oceans: 'They're deeply embedded'
Gone are the days when oceans mostly hosted fish, algae, and recreational human swimmers, as plastic is equally or even more abundant. Luckily, the first global effort, which included participation from Florida Atlantic University, to map these plastics in oceans has provided valuable insight, the FAU News Desk reports. The tiniest plastic fragments, called microplastics, are so small they measure from 1 micron to 5 millimeters. Unfortunately, as much as 9 to 14 million metric tons seep into ocean waterways annually, according to the FAU News Desk. Previous research has just been "scratching the surface" by focusing on the ones floating on surface waters. Luckily, this deep dive from a global team of researchers, including a researcher from FAU, mapped microplastic distribution from the surface into the deep sea. People now have a better understanding and awareness of most of how these materials build up and the entry path they take. Per the research results published in Nature, the surface-level plastics are the larger ones that can reach up to 5,000 micrometers, versus the smaller ones measuring up to 100 micrometers that spread out more evenly and deeper. Tracy Mincer, Ph.D., co-author and an associate professor of biology and biochemistry in FAU's Harriet L. Wilkes Honors College, told the News Desk, "Microplastics are not just floating at the surface — they're deeply embedded throughout the ocean, from coastal waters to the open sea." So far, 56 different types of plastic have been identified in the waterways. Denser and easily fragmented plastic dominates offshore, but polypropylene shows up less — possibly because this type photodegrades faster than others. Another potential downside is the effect on carbon cycling since oceans play a major role in absorbing human-made CO2. Mincer told the FAU News Desk about concern for the "potential consequences for climate regulation and marine food webs." After all, these plastics hurt aquatic life — animals from sea turtles to dolphins have choked on or become entangled in them. Their presence can throw off the ecosystem, particularly organisms like phytoplankton that aid in carbon storage, per Mongabay. Failure of oceans to effectively store this carbon means more can stay in the atmosphere and increase the heat in an already overheating planet. It's causing declines in coral, which houses many biodiverse creatures, filters the water, and produces oxygen. Human health is also at risk since these have made their way into our bodies and, according to previous research, may affect the brain. Do you think America has a plastic waste problem? Definitely Only in some areas Not really I'm not sure Click your choice to see results and speak your mind. Join our free newsletter for good news and useful tips, and don't miss this cool list of easy ways to help yourself while helping the planet.


New York Post
29-05-2025
- New York Post
Ancient DNA reveals ‘unexpected' new group of people who lived near land bridge between the Americas
Scientists have identified a new pod of ancient hunter-gatherers who lived near the land bridge between North America and South America about 6,000 years ago. Researchers are still charting how human populations spread across the Americas thousands of years ago, arriving first in North America before veering south. Groups that split off developed their own collection of genes that scientists can use to piece together the human family tree. Discovered through ancient DNA, the group lived in the high plateaus of present-day Bogotá, Colombia — close to where the Americas meet. Scientists aren't sure exactly where they fall in the family tree because they're not closely related to ancient Native Americans in North America and also not linked to ancient or present-day South Americans. Advertisement Scientists have identified a new pod of ancient hunter-gatherers who lived near the land bridge between North America and South America about 6,000 years ago. AP The new study was published Wednesday in the journal Science Advances. 'Up to this point, we didn't believe there was any other lineage that would appear in South America,' said archaeologist Andre Luiz Campelo dos Santos with Florida Atlantic University who was not involved with the new research. 'This is unexpected.' Advertisement Just 4,000 years later, these ancient humans were gone and a genetically-different human clan inhabited the area. Scientists aren't sure exactly what happened to make them fade away — whether they mixed into a new, bigger group or were pushed out entirely. Analyzing more genes in South America will help confirm if this new group truly did disappear or if there could be evidence of their descendants elsewhere, said Campelo dos Santos. Studying these ancient Colombian genes are important to piecing together the history of the Americas since ancient people had to cross this land bridge to settle in and spread across South America. The area is 'the gateway to the South American continent,' said study author Andrea Casas-Vargas with the National University of Colombia.