112 results
- Animals
Eggs and other land foods won’t feed polar bears
Polar bears will not be able to survive on land by eating birds, eggs and vegetation, a new review concludes.
- Anthropology
Siberians came to North American Arctic in two waves
Siberian ancestors of the modern-day Inuit replaced a 4,000-year-old North American Arctic culture, a DNA study reveals.
- Animals
Algal blooms created ancient whale graveyard
Whales and other marine mammals died at sea and were buried on a tidal flat in what's now in the Atacama Desert in Chile.
- Life
Males compete all the way to sperm shape
An association between the ratio of certain proteins in mouse sperm and sexual competition raises many questions about what exactly gives a sperm a good head.
- Earth
Oceanographers with flippers
Tracking seal dives off Antarctica reveals seafloor troughs that affect ocean circulation.
- Earth
Climate action could save polar bears
Cutting fossil fuel emissions soon would retain enough sea ice habitat for threatened species, scientists say.
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Melting at the microscale
Studying sea ice close-up may improve climate models.
- Earth
Fossil of a walking seal found
A fossil skeleton discovered in the Canadian Arctic could represent a missing link in pinniped evolution.
- Life
Birds bust a move to musical beats
Parrots and possibly other vocal-mimicking animals can synchronize their movements to a musical beat, two new studies suggest.
- Earth
Hey, What about Us?
The plight of polar bears may get most of the attention as climate change disrupts the Arctic ice, but plenty of other species, from walrus and seals to one-celled specks, are also going to see their world change radically.
- Animals
Polar bears listed
Polar bear declared "threatened," but Secretary limits decision's impact.
