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Search results for Polar Bears

Plants & Animals Oct 14, 2021

Which plants and animals are affected by climate change? Some may surprise you

We've all seen the picture of the polar bear perched precariously on a melting iceberg. It's the obligatory poster child for any discussion about species that are endangered by climate change. It isn't alone, of course. To ...

Environment Oct 13, 2021

You thought the oil spill was bad? In LA, toxic waste is everywhere

In a bad way, a very bad way, the Huntington Beach oil spill is the enviro-disaster equivalent of the giant panda.

Earth Sciences Oct 12, 2021

Arctic Ocean's 'last ice area' may not survive the century

With warming climate, summer sea ice in the Arctic has been shrinking fast, and now consistently spans less than half the area it did in the early 1980s. This raises the question: It this keeps up, in the future will year-round ...

Plants & Animals Sep 16, 2021

How the canine teeth of carnivorous mammals evolved to make them super-killers

Carnivorous animals come in all shapes and sizes, from the 500-gram quoll to the 500-kilogram polar bear. This disparate group of mammals shares a common feature: canine teeth at the front of their jaws.

Environment Sep 8, 2021

On thin ice: Near North Pole, a warning on climate change

A massive icebreaker cuts its way through the frozen waters of the Arctic Ocean, clearing a path to the North Pole, all white as far as the eye can see. But even here, the impact of climate change can be felt.

Ecology Sep 4, 2021

Wildlife 'Red List' a grim tally of extinction threat

The world will get an update Saturday of the Red List of Threatened Species, the authoritative catalogue of how many of the planet's animal and plant species are teetering on the brink of extinction due to human activity.

Earth Sciences Sep 3, 2021

Global warming threatens the existence of an Arctic oasis

The University of Helsinki's Environmental Change Research Unit (ECRU) took part in an international study investigating the millennia-long history of the most important oasis in the Arctic and the potential effects of climate ...

Plants & Animals Aug 12, 2021

How to spot the elusive narwhal

Finding animals in the wild can be tough, even for researchers with access to airplanes, high-end cameras and other costly gear.

Plants & Animals Aug 4, 2021

98% of emperor penguin colonies could be extinct by 2100. Can Endangered Species Act protection help them?

Emperor penguins thrive on Antarctica's coastlines in icy conditions any human would find extreme. Yet, like Goldilocks, they have a narrow comfort zone: If there's too much sea ice, trips to bring food from the ocean become ...

Plants & Animals Aug 4, 2021

Study tracks decline of weasels in North America

Researchers, including a North Carolina State University zoologist, found in a new study that three species of weasels once common in North America are likely in decline, including a species that's considered the world's ...

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