A total of 78% of puffin nests on the islands were occupied in a recent survey. Puffins have been hard hit in recent years due to a diminished food supply. It remains to be seen how successful the breeding season will be.

The willow blotch leaf miner appears to be having a banner year in Whitehorse, likely because of hot, dry conditions in the city this spring.

The latest update put the Swan Lake fire’s size at 23,530 acres.

Researchers say their absence is a stark reminder that the orcas are slowly starving to death because there is not enough Chinook salmon to sustain them.

Unlike some of its perpetually active neighbors on the Kamchatka Peninsula, Raikoke Volcano on the Kurile Islands rarely erupts. The small, oval-shaped island most recently exploded in 1924 and in 1778.

Late arrival of humpback whales may be related to a change in abundance of prey species.

Goldfish compete with native fish for food, potentially threatening an ecosystem.

Elodea was discovered in Alexander Lake in 2014 by researchers checking minnow traps. At the time, it covered 20 percent of the lake but now has spread to 90 percent.

An alarming number of gray whales have been found dead this year from Mexico to Alaska, triggering a federal investigation into what’s causing the die-off.

When temperatures soar this high above the Arctic Circle, it’s an attention-grabber.

"Its face was down in the mud and it was laboring to breathe. Its body condition was wasted and we could see its ribs."

"When we looked over the side of the boat, we saw clumps of mussels floating up the whole Tuksuk channel. No one has ever heard of something like this before."

“Smoke concentrations will be such that they could impact public health at times, according to an advisory issued by the state Division of Air Quality.

Belugas and narwhals can apparently breed. Scientists have confirmed the only known specimen of beluga-narwhal hybrid.

It is the first polar bear seen in the city in more than 40 years, according to local environmentalists.

While central Alberta is under a rainfall warning, thousands of people in Mackenzie County in northern Alberta are being evacuated from their homes in the face of aggressive and growing wildfires. 

A girl from Paso Robles, California, was bit by a sea lion in Pismo Beach on Friday near the pier. The animal that attacked likely had domoic acid poisoning, and will be treated at the Marine Mammal Center.

Chennai's severe water shortage has forced restaurants to shut and the city to scramble for solutions.

The fish, likely former aquarium pets, have attracted the attention of invasive-species managers.

A new study has found permafrost at outposts in the Canadian Arctic is thawing 70 years earlier than predicted.