World of Sharks

It’s the one you’ve all been waiting for…we’re going back in time to meet the largest shark to have ever existed: Otodus megalodon. Growing up to twenty metres long, with teeth as large as a human hand and jaws that could fit you and a friend (with some room to spare), this apex superpredator continues to capture our attention, despite having been extinct for at least 2.6 million years. But what is the truth behind this gigantic fish? Were they just a beefed-up white shark, or did they look completely different? How did they sustain themselves? Why did this apex superpredator cease to exist, and what did that mean for the prehistoric marine ecosystem? We talk about all of this and so much more with Dr Jack Cooper, paleobiologist and expert in prehistoric sharks!

Shownotes: www.saveourseas.com/worldofsharks/podcast

Follow Jack on X/Twitter (@cooperpaleo) and check out his most recent publications here: https://scholar.google.com/citations?user=C2zxEm4AAAAJ&hl=en. You can also find out more about the Pimiento Research Group here: https://www.catalinapimiento.com/

You can find out more about the Save Our Seas Foundation on Instagram (@saveourseasfoundation) and X/Twitter (@SaveOurSeas). 

Sharks and rays are found all over the world; from the freezing waters of the Arctic to the tropical Indo-Pacific, and just about everywhere else in between. This means that shark conservation is a global effort, spanning multiple countries, cultures, customs and languages. But did you know that 98% of scientific research is published exclusively in English? In this episode of the World of Sharks podcast, we discuss how linguistic bias can limit shark conservation and the value of publishing and communicating shark science in multiple languages. We are joined by Jaime Penadés-Suay, founder and president of Associacó LAMNA, and Hettie Brown, conservation officer for The Shark Trust. Jaime and Hettie recently collaborated to organise the first 'Wikimaratón de Tiburones y Rayas' (Sharks and Rays Wikimarathon), an event that motivated people from around the world to expand and improve information about elasmobranchs on the digital encyclopedia, publishing over 100 articles in Spanish!

You can read more about Wikimaratón de Tiburones y Rayas here: https://wikimedia.es/mas-de-100-articulos-sobre-tiburones-y-rayas-enriquecen-la-wikipedia-en-espanol/ and here: https://www.sharktrust.org/tiburones-y-rayas

You can also follow the project on Instagram: @rayas_y_tiburones

You can also follow Jaime (@jaimepenades) and LAMNA (@lamnaassociacio) on instagram. You can find Hettie on X/twitter (@hettiemermaid) and The Shark Trust on both instagram (@thesharktrust) and X/twitter (@sharktrustuk)

You can find out more about the Save Our Seas Foundation by heading to www.saveourseas.com or by following us on instagram (@saveourseasfoundation) and X/twitter (@SaveOurSeas).

Did you know that some sharks can keep parts of their body warm to allow them to move faster, swim for longer, see more clearly and think better?? Or, that basking sharks have a gigantic heart?! This week we are diving into the fascinating world of shark physiology and anatomy to learn about a special trait only found in a handful of species: regional endothermy. To take us on this journey of discovery we are joined by Dr Haley Dolton, marine biologist specialising in the physiology and ecology of large, regionally endothermic fishes!

Shownotes: www.saveourseas.com/worldofsharks/podcast 

You can follow Haley on X/Twitter (@haleydolton) or head to her website, www.haleydolton.com

You can find out more about us by heading to www.saveourseas.com, or following us on social media. We are @saveourseasfoundation on Instagram and TikTok, and @SaveOurSeas on X/Twitter. 

This week on the podcast we are taking a brief detour from sharks to explore the fascinating world of turtles and tortoises! We are diving into the research of SOSF project leader and turtle specialist Alessia Lavigne, who has been trying to understand why turtle and tortoise eggs sometimes fail to hatch. Turtles and tortoises (known collectively as the testudines) are, like sharks, one of the most threatened groups of animals on the planet. Understanding when and why reproduction fails is crucial to ensuring their protection - and Alessia has made huge strides in this area. In this episode we dive deep into her research and learn everything there is to know about these amazing creatures. Plus, we meet some iconic species, including the Aldabra giant tortoise. 

Alessia is on instagram and TikTok as @turtle_eggsplorer. 

Timestamps: 

0-7.00: Intro

7.07-17.11: How did Alessia get into the world of turtle research?

17.28 - 26.20: Turtle biology

26.40 - 32.51: Climate change and other threats

32.00 - 47.00: Alessia's research and reproductive failure

Shownotes: www.saveourseas.com/worldofsharks/podcast

You can find out more about the Save Our Seas Foundation on Instagram and TikTok (@savourseasfoundation) and twitter (@SaveOurSeas). 

We welcome back shark scientist and CEO/Co-Founder of Minorities in Shark Sciences, Jasmin Graham, and celebrate the release of her new book, Sharks Don't Sink: Adventures of a Rogue Scientist. We talk about the incredible adaptations and resilience of sharks, the glorious weirdness of sawfishes - a species Jasmin has worked closely with - and why Jasmin feels innately connected to sharks and compelled to protect them. We also talk about the barriers faced by gender minorities of color in STEM fields, and Jasmin's journey to continue science outside the confines of traditional academia. On this journey, Jasmin co-founded Minorities in Shark Sciences (MISS) with Carlee Jackson, Amani Webber-Schultz and Jaida Elcock, to promote diversity and inclusion in shark research. We discuss how MISS has grown into a global community, and how Jasmin and her fellow co-founders have built a safe, accessible and welcoming space for the good of people and sharks. 

Sharks Don't Sink is available now: https://www.penguinrandomhouse.com/books/726129/sharks-dont-sink-by-jasmin-graham/. You can follow along with Jasmin’s work on her website (www.learningwithjasmin.org) or on X/Twitter (@elasmo_gal).

You can also find out more about Minorities in Shark Sciences and how to get involved here: www.misselasmo.org. Or, you can follow them on social media (@miss_elasmo).

Shownotes: www.saveourseas.com/worldofsharks/podcast

You can also find out more about the Save Our Seas Foundation by heading to www.saveourseas.com or follow us on instagram (@saveourseasfoundation) and X/Twitter (@SaveOurSeas).

We are so excited to share with you a very special bonus episode of World of Sharks! Join us as we head into the field in search of the second largest species of shark in the world: the basking shark. We’ll be heading out on the boat with Dr Alex McInturf (@drsurfnturf), shark scientist at the Chapple Big Fish Lab (@big_fish_lab), SOSF project leader and project coordinator for the Irish Basking Shark Group (@baskingirish). You'll be right there with us as we conduct some basking shark research, and you'll learn what it's like to tag, track, ultrasound and swim with a 32 foot (10m) shark in the wild. 

Keep up to date with Alex here:  https://alexandramcinturf.squarespace.com, find out more about Taylor and the Big Fish Lab here: https://marineresearch.oregonstate.edu/chapple-lab and the Irish Basking Shark Group here: https://www.baskingshark.ie/

Key timestamps:

2.25 - Heading out on the boat and Alex's research

8.47 - Finding basking sharks

17.02 - Tagging

32.48 - Active tracking

38.35 - Ultrasounding

44.13 - Social behaviour

50.00 - Basking shark threats and conservation

Shownotes: www.saveourseas.com/worldofsharks/podcast

Follow Save Our Seas Foundation on instagram (@saveourseasfoundation) and x/twitter (@SaveOurSeas). You can also head to www.saveourseas.com

This week we are diving into the world of angel sharks, the second most threatened group of elasmobranchs in the world. Joining us is co-founder and co-lead of the Angel Shark Project, Eva Meyers, and project coordinator for the Angel Shark Project: Wales, Jake Davies. In this episode we learn all about angel sharks, their super-powered ability to “disappear” and ambush prey, and the work of the Angel Shark Project which aims to protect these unusual sharks throughout their range.

Shownotes: www.saveourseas.com/worldofsharks/podcast

You can find out more about the projects mentioned here: www.angelsharkproject.com, here www.angelsharknetwork.com, here https://angelsharknetwork.com/wales/ and here https://www.projectsiarc.com/.

You can also follow @angelsharkproject and @ProjectSIARC on instagram

You can follow Eva on X (@angelshark2014) and Bluesky (@evameyers.bsky.social) and Jake on instagram (@JDScuba). 

If you want to know more about us, you can follow us on instagram (@saveourseasfoundation), X (@SaveOurSeas) and TikTok (@saveourseasfoundation). 

Sharks with beards. Deep sea sharks with glow-in-the-dark bellies. Sharks that take on submarines. Sharks that walk instead of swim and rays with a hedge trimmer for a nose…this episode has it all! We explore the fantastic diversity of sharks and their relatives (and of all marine life!) with marine biologist, scientific writer and broadcaster Dr Helen Scales, ahead of the release of her new book, What the Wild Sea Can Be. Join us as we travel from the ocean depths to the shallowest rockpools, meeting a colourful bunch of characters along the way.

Timestamps:

05.01 - Helen's career journey from scientist to writer

16.33 - Pom-pom crabs, cleaner wrasse

22.14 - Sharks! Lanternsharks, greenland sharks, walking sharks, shysharks

27.10 - Sharks in history and culture

32.30 - The deep sea!

47.04 - Deep sea sharks

51.00 - What the Wild Sea Can Be and the future of our ocean

Shownotes: www.saveourseas.com/worldofsharks/podcast

Helen’s Instagram: @drhelenscales

Helen’s twitter: @helenscales

Website:  https://helenscales.com/

Helen’s latest book: https://atlantic-books.co.uk/book/what-the-wild-sea-can-be/

Save Our Seas Foundation is on instagram (@saveourseasfoundation) and x/twitter (@SaveOurSeas).

Come with us on a voyage to one of the most remote, biodiverse and "sharkiest" places on the planet with leading expert Pelayo Salinas, co-principal investigator of shark ecology and conservation at the Charles Darwin Foundation and Save Our Seas Foundation project leader. In this episode we go on a dive to observe scalloped hammerheads visiting their after-work spa, get booped by the bouncer of the reef, Galapagos sharks, and swim alongside the world's largest fish. And, if that wasn't enough, we head off on an expedition into the deep to visit a very unusual egg-laying site on a hydrothermal vent... 

You can follow Pelayo on instagram and twitter (@pelayosalinas) and find out more about the Charles Darwin Foundation here: https://www.darwinfoundation.org/en/   

Shownotes: www.saveourseas.com/worldofsharks/podcast 

Follow SOSF: @saveourseasfoundation (instagram), @SaveOurSeas (x/twitter)

Thresher sharks are known for their unusual hunting strategy. They use their long tail like a whip, striking it so fast that it creates a shockwave capable of stunning multiple fish at once! But how does their anatomy support such an extreme movement? In today’s episode we find out! We talk with Jamie Knaub, who researches the biomechanics and vertebral anatomy in large, swimming animals - including whales and sharks. In this episode we explore Jamie's research, including her most recent work studying the vertebrae of the thresher shark to understand how they are able to carry out that iconic tail whip. This episode has it all: the Olympians of the shark world, surprise humpbacks, sharks with anxiety, digital dissections and of course some deliciously nerdy science.

You can follow Jamie on X/twitter (@CornOnTheKnaub) or LinkedIn (Jamie Knaub). And you can find out more about the Fab Lab, run by Dr Marianne Porter, here: https://mepbiomechanics.com/

You can find us on social media on X/twitter (@SaveOurSeas) or instagram (@saveourseasfoundation)

Episode shownotes: www.saveourseas.com/worldofsharks/podcast