6,881 results
6,881 results for: Bears
- Ecosystems
New videos reveal the hidden lives of Andean bears
The footage give clues to the range of plants the bears eat and how they mate, information important for conservation.
- Life
Horses may have become rideable with the help of a genetic mutation
To make horses rideable during domestication, people may have inadvertently targeted a mutation in horses to strengthen their backs and their balance.
- Planetary Science
A Mars rock analysis tool proved its mettle on a chance find from Arizona
On Mars, the Perseverance rover found a spotted rock that could bear signs of ancient life. On Earth, a researcher used a lookalike for a dry run.
- Animals
Polar bears are being exposed to more pathogens as the climate warms
Polar bears have been exposed to more viruses, bacteria and parasites in recent decades, a new study shows, possibly acquiring the germs in their diet.
- Humans
These female divers spend more time underwater than any other humans
At an average age of 70, these women divers in South Korea still forage in the sea up to 10 hours a day and spend more than half of that time underwater.
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Which animal should scare you more?
Editor in Chief Nancy Shute discusses which should scare you more: sharks or ticks and fungus — and why sharks might actually be the least of your worries.
- Space
A NASA rover finally found Mars’ missing carbon
The Curiosity rover identified hidden caches of the mineral siderite, which could help explain why Mars lost its habitable climate.
- Paleontology
Sloths once came in a dizzying array of sizes. Here’s why
A new fossil and DNA analysis traces how dozens of sloth species responded to climate shifts and humans. Just two small tree-dwelling sloths remain today.
- Archaeology
Neandertals may have hunted in horse-trapping teams 200,000 years ago
A revised age for a German site indicates that our evolutionary cousins organized horse ambushes around 200,000 years ago.
- Science & Society
Will the Endangered Species Act survive Trump?
President Trump has already begun to introduce changes that weaken the Endangered Species Act, a cornerstone of U.S. conservation law.
- Life
Why these zombie caterpillars can’t stop eating
Sneaky chemistry by a real-life “Last of Us” Cordyceps fungus mind controls its zombie insect victims by convincing them they’re starving.
- Chemistry
Modified bacteria convert plastic waste into pain reliever
With genetic tweaks, E. coli turned 92 percent of broken-down plastic into acetaminophen, charting a path to upcycle plastic waste sustainably.
