World of Sharks

We're diving back into our mailbag to answer more of your burning sharky questions! In this episode we address all sorts of fascinating queries such as how bioluminescence evolved in sharks, which species are capable of breathing while they’re not swimming, and whether sharks are really older than trees. Plus, we take deep dives into several awesome species – great white sharks, grey reef sharks, pocket sharks and of course, James’ favourite, the velvet belly lantern shark. Specific question timestamps: Q1: Are there any shark species that are showing signs of adapting well to climate change? [3.36 – 10.21] Q2: Has there ever been more observations of any of the two species of Mollisquama (pocket sharks)? [10.31 – 13.20] Q3: How did bioluminescence in species like the pocket shark evolve? Was it independent, or did their last common ancestor have bioluminescent fluid? [13.40-15.11] Q4: We rarely hear about white sharks in the vicinity of South America, either ocean, with the exception of seasonal migrations of NA white sharks into the US South Atlantic coast and Caribbean. My question is: why not? [15.22 – 21.49] Q5: Which shark species can stay still and breathe through buccal pumping? [21.59-28.44] Q6: Which species of shark and ray are most closely related? [28.54 – 37.50] Q7: What is the most surprising thing you’ve learnt in your career (when you first started, vs. most recently)? [37.58 – 44.58] Q8: Shark [bite incidents] often go unreported for various reasons despite the best efforts of educational institutes to accurately record them. What do you think the real number of global [incidents] might be? [45.06-52.14] Do you have any questions you'd like researched and answered on the pod? Get in touch! You can email isla@saveourseas.com or message us on socials: @saveourseasfoundation.

In August 2025, a paper published in the journal Frontiers in Marine Science suggested that ocean acidification could negatively impact a shark's most useful tool: their teeth. We speak with the papers lead author, Max Baum, about this research, and what the findings could mean for the sharks of tomorrow. Plus we take a deep dive into the wonders of shark teeth, and meet a decidedly unbothered tiger shark named Farida. You can read the paper we discuss in this episode here: Simulated Ocean Acidification Affects Shark Tooth Morphology You can also follow Max on Instagram (@maxbaum_insights) and discover more about his work here: www.ocean-insights.org. Full shownotes: www.saveourseas.com/worldofsharks/podcast. Find out more about us by following @saveourseasfoundation across all platforms!

The Maldives has served as a shark sanctuary for 15 years, and is now one of the most diverse regions for sharks and rays in the world. But with great success comes a new problem: conflict with humans. Fishers are reporting a loss of some of their catch to sharks, an issue known as depredation. For her PhD, SOSF project leader Mina Hatayama is seeking to understand depredation in the Maldives, studying shark behaviour and how it impacts local fishers and their attitudes towards sharks. She will also be asking the very intriguing question of whether hotter sharks are hungrier sharks, exploring the potential role of ocean warming in these increased depredation incidents, as well as working closely with the local fishing community to understand their perspectives and co-develop sustainable solutions. In this episode, we dive into the challenges of humans and sharks sharing space and resources. It’s a really insightful conversation that weaves together all kinds of issues, from human attitudes and shifting baselines, to the influence of global threats such as climate change on human-wildlife interactions. We also discuss how complex and delicate these situations can be, and the realities of navigating an interdisciplinary project. Read more about Mina’s ongoing SOSF project here https://saveourseas.com/project/attitudes-and-costs-from-a-new-conservation-challenge/ and here https://www.fishandfisheries.com/minahatayama. Shownotes: www.saveourseas.com/worldofsharks/podcast

We know sharks have incredible senses, but just how good is their eyesight? In this episode, we explore the world through a shark's eyes with fish vision expert Dr Lily Fogg. How does fish vision compare to our own? How do the eyes of a fish living on a vibrant coral reef differ from those hanging out in the murky depths? And do sharks see in technicolour, or multiple shades of grey? We also take a dive deep into Lily's most recent research, which investigated the eyes of the world's longest living vertebrate: the greenland shark. Her findings challenge a commonly held perception of these ancient creatures, and push the boundaries of what we thought was physiologically possible... Shownotes: www.saveourseas.com/worldofsharks/podcast You can read the full study on greenland shark vision here: https://www.nature.com/articles/s41467-025-67429-6 You can find SOSF on social media by searching for @saveourseasfoundation across all platforms.

The conversations that shape the fate of sharks and rays rarely happen in quiet laboratories or out at sea. More often, they unfold in fluorescent-lit halls, behind nameplates and microphones, inside sprawling congress centres where global decisions about nature are made. At the IUCN World Conservation Congress, surrounded by thousands of delegates debating the future of biodiversity, host Isla sat down with SOSF Scientific Advisor Sarah Fowler and Chair of the IUCN Shark Specialist Group, Dr Rima Jabado, to discuss how far we’ve come in the race to save sharks and rays from extinction – and what steps we need to take next to ensure their future on this planet. Shownotes: www.saveourseas.com/worldofsharks/podcast Find out more about the Save Our Seas Foundation (SOSF) here: www.saveourseas.com or follow @saveourseasfoundation across all platforms.

How do sharks locate prey when they’re roaming the open ocean? What does a shark ambush look like? Are sharks capable of hunting cooperatively? And why do cookiecutter sharks take on prey much larger than themselves (including submarines!)? We are asking all these questions and so much more this week as we dive into the fascinating world of shark behavioural ecology to better understand foraging and hunting, with marine biologist and co-lead of the Predator Ecology and Conservation Lab at Florida International University, Dr Yannis Papastamatiou. Find out what it was like to dive with over 300 blacktip reef sharks at once (in the dark), what sharks and seabirds have in common, and why white sharks might be more social than we think. You can follow Yannis (@yannispapastamatiou) and the PECLab (@peclabfiu) on Instagram. You can find us across all platforms: @saveourseasfoundation. Shownotes: www.saveourseas.com/worldofsharks/podcast

From a shovel to a mallet, and even an aeroplane - the hammerheads really do win the prize for some of the most bizarrely shaped sharks out there. But why do they have such oddly-shaped noggins? What do they eat? Where do we find them? And why are one of the most charismatic groups of sharks in the world also one of the most threatened? In this episode we are joined by Dr Kelly Kingon, Associate Professor at the University of the Bahamas, SOSF project leader and co-director of the non-profit CHaPO (Conserve Habitats and Protect Organisms). Kelly has been trying to find scalloped hammerhead nurseries in Trinidad and Tobago to inform conservation and management strategies for this heavily fished species. We discuss the amazingness of hammerheads, their unique adaptations and conservation status, before zooming in on Kelly's research to discover what's happening to baby hammers in the warm waters of the Carribean. Shownotes: www.saveourseas.com/worldofsharks/podcast Find out more about Kelly's work: https://saveourseas.com/project/community-supported-conservation-goals-for-scalloped-hammerhead/ https://www.facebook.com/iCHaPO.TT/ https://www.linkedin.com/company/ichapo/ Instagram: ichapo_tt TikTok: chapo_tt ichapo.com FREEthelab.com Find out more about us: www.saveourseas.com @saveourseasfoundation

A turtle that looks like a pig, and a shark that looks like a plane...in this episode, we're heading to the colourful, diverse lands of the Kikori River in Southern Papua New Guinea to meet researcher and director of the Piku Biodiversity Network (www.pikubionet.org.pg). In 2018, Yolarnie expanded the PBN - which originally focussed on the community-led conservation of the endangered pig-nosed turtle - to include the 45 species of shark and ray that can be found in the Kikori river system. These species include the unusual and understudied winghead shark, one of the few sharks that passes between salt and freshwater to give birth to its young. Find out more about Yolarnie's project, which she co-leads with Dr Michael Grant, here: https://saveourseas.com/project-leader/yolarnie-amepou/ Shownotes: www.saveourseas.com/worldofsharks/podcast

We're taking to the skies to find out what great white sharks get up to when no-one's looking... From his drone’s vantage, Carlos Gauna — AKA The Malibu Artist — has captured previously unrecorded behaviours of one of the ocean’s most captivating predators, the great white shark. His footage has fascinated viewers from across the globe, challenged misconceptions of white sharks, and even altered Carlos’ own perspective of the species. In this episode we talk about some of these behaviours; from a shark apparently 'eating' kelp to their interactions with dolphins and people. And, we discuss the moment that Carlos captured the first possible newborn white shark on camera - a key discovery that could secure important protections for white sharks in the area. You can follow along with Carlos' work and see all his incredible footage here: Youtube: http://www.youtube.com/@TheMalibuArtist Instagram: @themalibuartist Website: www.themalibuartist.com Shownotes: www.saveourseas.com/worldofsharks/podcast

In part 2 of our 'In the Field' episode with the Save Our Seas Foundation D'Arros Research Centre, we are heading to the neighbouring atoll of St Joseph to tag juvenile sharks and take part in their long term mark-recapture study. We'll also be finding out more about the sharks of D'Arros, and heading out at night in search of bull, mako, silvertip and grey reef sharks... Time stamps: 03.55: Why is D'Arros so important to sharks and rays? 07.15: Tagging juvenile sharks on St Joseph atoll 23.00: Camping overnight on the atoll and sea turtle survey 31.19: Tagging adult sharks at night 36.00: Tonic immobility 40.00: Diving on receivers 44.09: Translating science into conservation action 49.18: What can we learn from D'Arros? Find out more about the Save Our Seas Foundation D'Arros Research Centre here: https://saveourseas.com/sosf-darros-research-centre/ or on social media: @darrosresearchcentre

We're gonna need a bigger podcast... In honour of the 50th anniversary of the release of Jaws - one of the most iconic shark movies of all time - we are bringing you a very special bonus episode wholly dedicated to the film. Host Isla is joined by two jawsome guests: shark scientist and science communicator Amani Webber-Schultz (@curly_biologist), and social scientist and Associate Professor in public policy, Dr Chris Pepin-Neff (@csyd2202). Together, they discuss the cultural impact of Jaws and its negative effects on public perceptions of sharks and shark conservation, as well as its positive influences - including sparking the careers of a whole generation of shark scientists. And, they take a deep dive into the film itself, reliving their favourite scenes, sharing behind-the-scenes facts, and dreaming up their own pitches to Hollywood. Shownotes: www.saveourseas.com/worldofsharks/podcast Check out Minorities in Shark Sciences (MISS), the organisation that Amani co-founded, here: https://www.misselasmo.org/ Amani's appearance on Wired: (https://www.youtube.com/watch?v=t8hjTa1IeNc) and Insider: https://www.youtube.com/watch?v=habSJ85RFBQ You can watch Chris' TED talk on Rogue Shark Theory here: https://www.youtube.com/watch?v=Vcmy2Bd23wE Find out more about Chris' publications here: https://sydney.academia.edu/ChrisPepinNeff

This week on the World of Sharks podcast we are meeting Ana Lúcia Furtado Soares, founder of the Angola Elasmo Project - a grassroots initiative focussed on the research and conservation of sharks and rays along the Angolan coast – to discuss the joys and challenges of building a project from scratch, working with data-poor fisheries and the importance of empowering local voices. Shownotes: www.saveourseas.com/worldofsharks/podcast You can follow the Angola Elasmo Project on Instagram (angola.elasmoproject) and find out more about the project here: https://saveourseas.com/project/documenting-shark-diversity-and-fisheries-in-angola/https://saveourseas.com/project/the-angola-elasmo-project/https://saveourseas.com/project-leader/ana-lucia-furtado-soares/ You can find out more about the Save Our Seas Foundation on instagram (@saveourseasfoundation), Facebook (Save Our Seas Foundation), Bluesky (@saveourseas.bsky.social) or by heading to www.saveourseas.com.