Marine mammals News

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A southern sea otter.

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

Christine Heinrichs 19 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
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
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
A sea otter

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

Edward Carver 21 Nov 2025
A humpback whale fluke.

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

Francesco De Augustinis 4 Nov 2025
A turkey moray in a coral reef in Mauritius.

In Mauritius, an NGO is tracking the sex life of corals to save them

Malavika Vyawahare 30 Oct 2025
A humpback whale

Australia celebrates ‘humpback comeback,’ but a main food source is under threat

Mike DiGirolamo 28 Oct 2025
The Pujada Nickel Mining Project leaves an open-wide brown pit, sandwiched between the Mount Hamiguitan Range Wildlife Sanctuary and Pujada Bay.

Nickel mining damage near UNESCO site stirs outrage in southern Philippines

Bong S. Sarmiento 23 Oct 2025
A harp seal on ice.

Arctic seals edge closer to extinction as sea ice vanishes

Keith Anthony Fabro 23 Oct 2025
A raft of sea otters off the Alaska coast.

Booming sea otters and fading shellfish spark values clash in Alaska

Justin Catanoso 21 Oct 2025
Two olive ridley turtles caught in discarded fishing nets. Image courtesy of Galbokka Sea Turtle Conservation & Research Center.

Ghost nets entangling turtles, marine life in Sri Lanka’s waters

Mongabay.com 21 Oct 2025

Rare dugong calf sighting in Alor spotlights seagrass & marine mammal conservation

Basten Gokkon 21 Oct 2025
Photos of orcas captured using drones in Alaska.

Drone surveys offer early warnings on whale health and survival

Abhishyant Kidangoor 16 Oct 2025
A waddle of chinstrap penguins (Pygoscelis antarctica) on Deception Island, Antarctica. Image courtesy of Jay Williams / WWF.

Abandoning Antarctic krill management measure threatens conservation progress (commentary)

Andrea Capurro, Mary-Anne Lea 13 Oct 2025
A harbor seal pup is carefully restrained by an animal care volunteer during a tube feeding at The Marine Mammal Center’s hospital and visitor center in Sausalito, California.

Will California’s marine mammal conservation success come undone?

David Helvarg 9 Oct 2025
Two Iberian orcas pictured off the coast of Spain. Image courtesy of circe.info.

Iberian orcas sink sailboat in latest ramming ‘game’ in Portugal

Shanna Hanbury 19 Sep 2025

Once again, an endangered orca in Washington state is seen carrying a dead calf

Associated Press 16 Sep 2025
An adult female dolphin, Y21, during her health assessment in Barataria Bay, Louisiana, to determine the long-term health effects of the Deepwater Horizon oil spill on wild dolphins. Photo credit: Todd Speakman, National Marine Mammal Foundation

On World Dolphin Day, spotlight falls on threats to dolphins worldwide

Shanna Hanbury 12 Sep 2025
A man walks past kelp in the Pacific Ocean at La Jolla Shores, San Diego.

Post-Blob, California’s kelp crisis isn’t going away

David Helvarg 9 Sep 2025

Argentina pushes pipeline exports through protected Patagonian waters

Rodolfo Chisleanschi 18 Aug 2025
Banner image of a school of grunts (Pomadasys incisus) in the Teno-Rasca Marine Strip by Diego Delso via Wikimedia Commons (CC BY-SA 4.0).

Goldman Prize winner’s shift from engineer to activist in Tenerife, Canary Islands

Mongabay.com 13 Aug 2025
A humpback whale fluke.

Krill fishery in Antarctica shut down after record catch triggers unprecedented early closure

Associated Press 5 Aug 2025
A beluga whale in the Arctic Ocean near Norway.

Saving polar bears and beluga whales: Interview with Alysa McCall

Abhishyant Kidangoor 24 Jul 2025

James ‘Buddy’ Powell, defender of manatees, died on July 19, aged 70

Rhett Ayers Butler 23 Jul 2025

Global tracking study reveals marine megafauna hotspots lie largely unprotected

Keith Anthony Fabro 16 Jul 2025
Hydrogen storage tanks are visible at the Iberdrola green hydrogen plant in Puertollano, central Spain, March 28, 2023.

Locals fear Chile’s new port project for green energy will disrupt ecosystems

Aimee Gabay 11 Jul 2025
Banner image of a humpback whale breaching in Iceland, by Giles Laurent via Wikimedia Commons (CC BY-SA 4.0).

Commuter traffic stops for whales on Australia’s humpback highway

Associated Press 27 Jun 2025
wo whales allokelping, with a small length of kelp stem visible between them. Center for Whale Research, NMFS NOAA Permit 27038

Orcas discovered making tools from seaweed to ‘massage’ each other

Liz Kimbrough 25 Jun 2025
How manatees won over an entire village. Manatee Brazil

Brazil manatee hunters become advocates as village turns to ecotourism

Mongabay.com 20 Jun 2025

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