“The exact reasons why the return fell at the lower end of the forecast range are unknown at this time, but poorer than average marine survival is a leading candidate.”

Large shearwater die-off at a Pilot Point beach.

In less than three years, the number of animals on the island of Kolguyev dropped from more than 12,000 to only 153.

Drought and high temperatures have dried the creek and caused thousands of pink salmon and Dolly Varden to die before they could spawn. The event raises questions about vulnerability of area salmon streams to climate change, and for local residents food security.

Swimming moose dies

Scientists first caught on to the strange event when they found thousands of purple sea urchins and other organisms dead in their laboratory tanks.

2/20/15 Needle fish die-off - Kongiganak, Alaska, USA

Chum salmon die-off in the Kobuk River.

Northern sea nettle jellyfish die-off

Laysan albatross chickens died from causes related to abnormal Santa Ana winds

Animals cannot forage for lichen under the snow crust on the Yamal peninsula.

Ten million scallops that have died in the waters near Qualicum Beach due to rising ocean acidity are the latest victims in a series of marine die-offs that have plagued the West Coast for 10 years. . .

11-1-13 Krill die-off - Metlakatla, Alaska, USA

So far approximately 340 bison have died from an anthrax outbreak in the Fort Providence area of the N.W.T.

According to a report from Peru 21, local fishermen in Lambayeque, north Peru, were first to notice the inexplicable rise in dead dolphin appearing on shore -- averaging roughly 30 per day.

Authorities in Uruguay say they have found about 600 dead penguins washed up on the Atlantic coast since Saturday. Experts are trying to determine what has killed the sea birds.

A winter storm lashed the sandy beaches at the mouth of the Ninilchik River with ferocious waves, powerful enough to uproot thousands of razor clams.

STERLING, Alaska — Spent today tramping around the boggy depths of the Kenai National Wildlife Refuge, which is about a three-hour drive south of Anchorage. Berg The group went there to see h…

Dozens of dead penguins and others alive but with traces of oil appeared over the weekend along the east of Uruguay according to a marine life conservation non government organization.

Aerial surveys show almost no reefs across a 1,200km stretch escaping the heat, prompting scientists to call for urgent action on climate crisis.