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Scalloped hammerhead sharks (Sphyrna lewini), photographed in Yonaguni, Japan.

Top ocean news stories of 2025 (commentary)

Alfredo Giron, Ana Spalding, Erin Skoczylas, Vanessa Constant 24 Dec 2025
Shark meat is prepared for distribution at CEAGESP in São Paulo city. Image by Philip Jacobson/Mongabay.

Mongabay shark meat investigation wins national journalism award in Brazil

Mongabay.com 23 Dec 2025
Vermillion rockfish and soft coral observed during an expedition in Channel Islands National Marine Sanctuary.

Century-old corals reveal the Pacific Northwest is acidifying faster than expected

Elizabeth Fitt 22 Dec 2025
A southern sea otter.

Zombie urchins & the Blob: California sea otters face new threats & ecosystem shifts

Christine Heinrichs 19 Dec 2025

The lab-in-a-backpack busting illegal shark fins: Interview with Diego Cardeñosa

Philip Jacobson 18 Dec 2025

A rare right whale spotted off Ireland resurfaces near Boston

Bobby Bascomb 17 Dec 2025

Elephant seals can recognize the voices of their rivals

Bobby Bascomb 11 Dec 2025

Global manta and devil ray deaths far exceed earlier estimates: Study

Keith Anthony Fabro 11 Dec 2025
A diver swimming close to a female sperm whale pod.

Unregulated tourism risks disrupting Timor-Leste’s whale migration

Robin Hicks 11 Dec 2025

The last of the Vaquita Porpoise (cartoon)

Rohan Chakravarty 9 Dec 2025
Fishing gear. Image courtesy of Thomas Merritt via Unsplash.

‘Myopic’ fisheries managers toy with a new ‘tragedy of the commons’ (commentary)

Charles Clover 9 Dec 2025

South Africa withdraws abalone listing even as illegal trade threatens species

Victoria Schneider 8 Dec 2025
A breaching northern bottlenose soars out of the water. Image by Sanna Isojunno via Wikimedia Commons (CC BY-SA 4.0).

A rare bright spot for whales: Decades of conservation pay off for endangered population in Canada

Stella Mayerhoff 5 Dec 2025

Countries back strong new trade limits for sharks and rays at CITES summit

Victoria Schneider 3 Dec 2025

45 more shark species up for CITES protections; tight vote expected

Philip Jacobson 26 Nov 2025
California sea lion by Rhododendrites via Wikimedia Commons (CC BY-SA 4.0)

Chronic diseases prevalent across animals, but understudied: Study

Shreya Dasgupta 25 Nov 2025

Abrolhos: A South Atlantic marine treasure in need of protection

Elizabeth Oliveira 24 Nov 2025
A sea otter

‘Forever chemical’ contamination could undermine sea otters’ fragile recovery in Canada

Edward Carver 21 Nov 2025
Oceanic white tip shark. Image courtesy of Mark Royer, Hawaii Institute of Marine Biology.

For sharks on the brink of extinction, CITES Appendix II isn’t protective enough (commentary)

David Shiffman 20 Nov 2025

Wolf hauls up crab trap to eat bait, hinting at possible tool use

Bobby Bascomb 20 Nov 2025
A turtle consumes a plastic bag.

Lethal dose of plastic for seabirds and marine animals ‘much smaller than expected’

Elizabeth Claire Alberts 19 Nov 2025

Offshore fossil fuel exploration jeopardizes Brazil’s climate leadership, study says

Lucas Berti 18 Nov 2025
Pyramid butterflyfish (Hemitaurichthys polylepis) around the island of Bali in Indonesia.

Trade in marine fish for aquariums includes threatened species, lacks oversight: Study

Edward Carver 18 Nov 2025

Study maps whale shark stranding hotspots in Indonesia, highlights conservation needs

Basten Gokkon 18 Nov 2025

Pakistan declares its third marine protected area, but has a long way to go

Ayaz Khan 17 Nov 2025

Sea anemones and hermit crabs form a mutualistic relationship in Japan

Bobby Bascomb 13 Nov 2025

Expedition charts Cook Islands seafloor, amid scrutiny over mining motives

Elizabeth Claire Alberts 6 Nov 2025
A humpback whale fluke.

Antarctic conservation summit closes with stalemate on MPAs & krill fishing rules

Francesco De Augustinis 4 Nov 2025
Trawlers docked outside Sihanoukville. Screenshot from ‘Illegal fishing and land grabs push Cambodian coastal communities to the brink’ by Andy Ball / Mongabay.

Chaos on Cambodia’s Coast

Mongabay.com 3 Nov 2025

Night dives reveal hidden alliances between young fish and larval anemones

Elizabeth Claire Alberts 31 Oct 2025
Antarctic krill (Euphausia superba). Image by Dr. Wayne Trivelpiece via Wikimedia Commons. Public domain.

Norway’s proposal to double krill harvests raises tension at Antarctic conservation summit

Francesco De Augustinis 30 Oct 2025

On first International Day of the Deep Seabed, we seek stewardship and consensus (commentary)

Leticia Carvalho 30 Oct 2025

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