Search Results for: Polar Bears
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604 results
604 results for: Polar Bears
- Animals
New water bear species found in Antarctica
A tiny creature called a tardigrade could shed light on how animals reached the far southern continent.
- Climate
Melting ice forces walrus detour
Warming temperatures and shrinking summer ice cover have forced the animals to seek solid ground during feeding season.
- Genetics
Genes tell tale of cat domestication
A peek into cats’ genetic makeup may help reveal how hissing wild felines became purring tabbies.
- Tech
Scientists struggle to find signals in the noise
Even in a simple system like email, detecting the signal from the noise is not always easy. It can be even more difficult separating a dazzling discovery from dust or whether a breast mass is cancerous or benign.
- Animals
Spotted seals hear well in and out of water
Spotted seals, native to the northern parts of the Pacific, hear frequencies that may mean they are susceptible to the effects of anthropogenic noise.
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Polar bears have seen hard times
Two genetic studies extend the Arctic icon’s lineage way back.
- Astronomy
Quiet maximum
By almost any measure, this solar maximum has been pathetic. No more than 67 sunspots have appeared in a month so far; at the last peak, in 2000, that number was above 120.
- Life
Polar bears’ ancient roots pushed way back
Full genetic blueprints suggest the animals split from brown bears millions of years ago.
- Tech
Designing robots to help in a disaster
Ideally, robots could take over for human crews in disaster zones. But seemingly simple tasks, such as walking, communicating and staying powered up, still pose big challenges.
- Life
Polar bears older than previously thought
New analysis reveals that the Arctic species dates back to about 600,000 years ago.
- Health & Medicine
Mammography’s limits becoming clear
It may be time to move way from blanket recommendations about mammography and empower women to decide for themselves, new work suggests.
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Science News Top 25
Science News reviews the year in science with a compilation and analysis of the most fascinating stories reported in the magazine. Also highlighted are reader favorites, debunked science and the year's weirdest stories.
