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Perhaps the most interesting find of this research is the fact that a single stingray carries within its muscle tissue a chemical archive shaped by diet, environment and physiology. Which begs the question: how many other hidden archives are we overlooking in the ocean? 

New research in Puerto Rico reveals that local scalloped hammerheads are a genetically distinct population, underscoring urgent conservation needs. Scientists, collaborating with fishers, analyzed nearly 400 shark anal fins over 18 months. 

As a shark swims and feeds, it constantly takes in amounts of contaminants from the water and sediment, while it also absorbs all the contaminants its preys, like other fish and cephalopods (squids and octopus), took in before as they also swam and fed. And, increasingly, the contaminants in these food chains are the residues of our medications.

A team of Costa Rican and Brazilian scientists has identified a new species of deep-sea fish living in the Pacific waters off Costa Rica, highlighting how much of our country’s marine biodiversity remains unexplored.

A new species of walking shark has been discovered in the shallow waters off southeastern Papua New Guinea, the 10th member of a genus famous for using their fins like legs to amble across coral reefs.

A team of oceanographers at the University of Hawai'i at Manoa reported two live observations of one of the most elusive sharks on the planet.

For nearly 20 years, the blue-spotted bamboo shark, found only in Madagascar, went scientifically undetected and unrecorded. But researchers have now found four new records of the “lost” shark while surveying fishing villages and a Malagasy university’s fish collection.

A discovery made on a remote Scottish shore is helping marine scientists in southern Europe understand more about an endangered species of deep water shark.

Researchers analyzed landings of sharks, rays and guitarfish at two major artisanal fishery processing sites, Kafountine and Elinkine, in southern Senegal’s Casamance region between June 2021 and July 2022. Most of the catches comprised species at risk of extinction, and many were traded abroad without obligatory export permits, the study found.

Combining lasers and sharks may sound like a bad idea, but marine ecologists are banking on it to help save some of the planet’s most threatened species.