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Six narwhals swimming in the sea, in an overhead photo
Narwhals are one of the five toothed whale species known to experience menopause.

Study reveals extended lifespan in menopausal whale species

In an intriguing parallel to human biology, females of whale species which experience menopause have evolved extended lifespans, enabling them to support their offspring for longer, according to research by the University of Exeter, the University of York and the Centre for Whale Research.

The study focused on five whale species known to experience menopause. Menopausal female whales tend to live about 40 years longer than males of the same species, giving them extra years to care for their young and grandchildren.

The San Diego Undersea Film Exhibition (SDUFEX) is now accepting entries for its 2024 film festival

We are inviting underwater filmmakers worldwide to submit their films. Submissions are currently open until June 20, 2024. SDUFEX is a unique opportunity to share your visions of the underwater world with a global audience. 

Your films will make our event a success!

Soaring insurance rates threaten the economic well-being and family life of dive business owners and employees. Many operators are forced to pass on these increased costs to their customers.

Dive Boat Act Proposes Relief for US Dive Operators

The enactment of the Small Passenger Vessel Act (SPVA) in 2022 amended US maritime law, affecting the liability of small passenger vessel owners for safety violations that lead to accidents.

Aerial images comparing the sizes of adult male Bigg’s and Resident killer whales, both taken in the Salish Sea off southern Vancouver Island.

Orcas Are Possibly Two Distinct Species

Orcas have long been considered a single global species, with different forms in different regions, known as “ecotypes.”

However, scientists have long recognised the differences between resident and transient orcas, known as Bigg's killer whales, in the North Pacific. Resident orcas maintain close-knit family pods and prey on salmon and other marine fish, while Bigg’s orcas roam in smaller groups and hunt other marine mammals such as seals and whales.

Kelp Forests Flourished Off US Pacific Coast as Early as 32 Million Years Ago

Ground-breaking research has revealed that Pacific kelp forests are much older than previously thought, reshaping our knowledge of marine ecosystems.

Originally thought to be a relatively recent occurrence in ocean history, kelp forests are now considered ancient entities, with origins dating back millions of years. This revelation comes from the analysis of fossil records and advances in dating techniques, allowing scientists to peer back through time.

Marsa Shagra house reef (archive photo)

Egyptian Dive Operators Affected by Regional Unrest

Despite the conflicts not being close to the main Red Sea dive resorts, many operators we spoke to at the Boot show in Germany reported an increase in cancellations and a noticeable slowdown in bookings.

One operator based in Marsa Alam wrote that after the Boot show they had attended additional exhibitions and met many people who were enthusiastic about diving in Egypt. However, a handful expressed reluctance, choosing not to visit this year due to the political climate.

Aellopobatis bavarica: The newly discovered species, complete fossils are only known from Germany. This species is also the largest species of all and can grow up to 170 cm in size.

Scientists Discover 150 Million-Year-Old Species of Rays

In a groundbreaking study led by the University of Vienna, researchers have unearthed evidence suggesting that the seas of the Jurassic era, some 150 million years ago, teemed with a diversity of ray species far beyond what was previously understood. The discovery of a new species, named Aellopobatis bavarica, provides fascinating insights into the evolutionary history of these ancient marine animals.

Shark accidentally caught on a longline.

Innovative Project Aims to Reduce Shark Bycatch

In La Réunion, an island in the Indian Ocean that is an overseas department and region of France, small-scale fishers often use surface longlines targeting tuna and billfish, but this sometimes leads to the accidental capture of sharks.

The EU-funded ASUR project is researching innovative methods to reduce the incidental catch of sharks by these longlines, bringing together scientists and fishermen to tag and release sharks and to test equipment designed to reduce shark mortality.