For centuries, marine species have moved around either by hitching ride on the hulls of ships or as stowaways in ballast water. In many instances, species have been deliberately introduced for aquaculture or other commercial purposes.

Coyotes infected with sarcoptic mange have been mistaken for "zombie" dogs near Chicago IL police say. Coyotes also prevalent in Southern Illinois.

The creeks were so full - I bet the oxygen levels weren't so good for them though.

Scientists are unsure if warming temperatures are causing the bizarre invertebrates to spread.

A large iceberg was spotted approximately 93 km (57 miles) to the west of Látrabjarg, which is located in the north-west of Iceland.

Beetles that killed millions of acres of trees in the 1990s were a first sign of climate change. In a new flare-up, they continue marching north as Alaska warms.

Maps and graphics show the extent of the devastating flooding caused by Hurricane Harvey in Houston and Texas.

Yakutia in a white blanket as temperatures dip to minus 6C as winter 'comes too soon'.

A small caterpillar has already infected large areas of Norway's largest county. Scientists fear this may be the beginning of something far worse.

The devastating storm once known as Hurricane Harvey, already the biggest rainstorm in the history of the continental United States, delivered another punishing wave of rain Wednesday to Texas and Louisiana.

For the last century, reindeer have roamed St. Paul Island without much oversight. But now, the tribal government is stepping up its management style to boost subsistence options and the local economy.

Harvey has been devastating beyond Houston. Here's the latest.

The last train to Churchill sits beside the town’s antique station, settling into place week after week.

It arrived on May 23, the morning when floods washed out the track connecting this frontier town in northern Manitoba on the edge of Hudson Bay — and it hasn’t moved since.

Once a symbol of expansion and hope, the passenger train has become a painful emblem of lost jobs, empty hotel rooms and mounting hunger for the town’s residents, and a bellwether of climate change for scientists.

Notoriously high to begin with, the price of groceries in Churchill has skyrocketed as supplies now arrive by plane. Even with emergency government subsidies in place, a four-liter jug of milk that once cost 6.19 Canadian dollars, or nearly $5, now rings in at 10.89. Two small bags of produce, containing just fruit, snap peas and beans, cost 82.99.

The storm is not expected to relent until Wednesday afternoon.

The Kivalliq Inuit Association says a road connecting the Whale Tail pit project to the Meadowbank mine, near Baker Lake, will bisect a caribou migratory route and will have more frequent traffic than any other mine in Nunavut.

Unidentified sea mammal bones later identified as beluga whale.

It's unclear how many Atlantic salmon escaped from the pen. The Lummi Nation says tribal fishermen have removed 20,000 from the Puget Sound. Washington state officials says Cooke Aquaculture has recovered 120,000 fish from the pen and that more are still inside.

For the past several weeks, monsoon-triggered floods have devastated regions in Nepal, Bangladesh and India. This week, a new series of storms has brought everyday life in Mumbai to a near halt.

Looking around the deserted plaza in front of the Sandman Centre arena in Kamloops on Monday, it’s hard to believe that last month it was crammed with thousands of people who were looking for help after being forced from their homes by wildfires.