Less than two months after the removal of dams restored a free-flowing Klamath River, salmon have made their way upstream to begin spawning and have been spotted in Oregon for the first time in more than a century.

Photos of the animal recently circulated widely online, prompting a flurry of debate about whether the animal was a wolf or just a dog.

Eric and Louise McLeod have been visiting their cabin south of Aklavik, N.W.T., for 25 years. On their most recent trip, they saw something they never had before.

A new plant species is establishing itself in the area and impacting native beach greens.

An observer reports unusual sightings of Sabine's gulls, including juveniles, outside their typical migration period, suggesting a potential new breeding colony near Nome.

RÚV received a video this week that shows a whale just off the beach at Reynisfjara; the second time in about a week. Guðjón Már Sigurðsson, marine biologist and cetacean expert at the Icelandic Marine Research Institute, says the whale swims shallow in a search for food.

Blue jays occur across southern Canada from Alberta east to Quebec and the Atlantic provinces.

A wolf has been sighted in Sokndal, near the coast of western Norway, an area where such sightings are rare, sparking discussions about potential risks and the possibility of issuing a culling permit.

Climate change has led to sightings of species like the European adder, spiders, and herons beyond their typical range in the Russian Arctic.

A polar bear was shot in Ittoqqortoormiit after being spotted wandering the streets, marking the second such incident in the town within a week.

A rare phenomenon of gnat larvae forming snake-like processions has been observed again in Interior Alaska, raising questions about their behavior and species classification.

An extremely rare Spade-toothed Beaked Whale Mesoplodon traversii washed ashore in Otago, providing the first chance to dissect and study such a specimen, with DNA analysis underway to confirm its species.

At least 65 long-finned pilot whales have died after being stranded on an island off the north coast of Scotland, a rescue charity said on Thursday, in one of the largest mass strandings in Britain in recent times.

Norway reports a record high of 175 Lyme disease cases from January to June 2024, with uncertain causes attributed to weather conditions and increased tick awareness.

Two harbor seal pups, one from Naknek and another from Wrangell, were recently rescued and are receiving care at the Alaska SeaLife Center due to malnourishment and other health issues.

Hurricane Ivan in 2004 was the last strong hurricane to hit the southeastern Caribbean, causing catastrophic damage in Grenada as a Category 3 storm. Hurricane Beryl lashed the southeastern Caribbean as a Category 4 storm — an unprecedented strength this early in the Atlantic season. Beryl amassed its strength from record-warm waters that are hotter now than they would be at the peak of hurricane season in September, he said.

A mountain lion was shot on Wrangell Island, marking the first sighting in Southeast Alaska since 1998, prompting an investigation by local authorities.

This crab from the Pacific Ocean was once introduced into the Barents waters of the Soviet Union in Arctic Russia. Since then the invasive species has spread to Norway’s Barents Sea and a multi-million dollar industry has sprung up around it. In 2023 Norway exported 2,500 tons of king crab worth 1,2 billion kroner (€100 million).

A polar bear was drawn to the Hope Dog Sled Race in Chukotka, Russia, an unusual event for the area. It is the third recent visit of a bear to the village. In size and build, the polar predator is similar to the same bear thatdisturbedlocal residents on the night of March 28.

A gray whale, presumed extinct in the Atlantic for over 200 years, was spotted by the New England Aquarium team south of Nantucket, suggesting climate change effects.