All Stories
- Animals
Picture This: Rare tiger becomes mom
Zolushka is the first Amur tiger to be reintroduced to the wild and have cubs. She are her two young were caught on a camera trap.
- Chemistry
Scientists Say: Joule
A joule is the amount of work done when a force of one newton moves an object one meter. It’s also the energy required to produce one watt for one second.
- Brain
Bubbles may underlie trauma’s brain injury
Many soldiers and accident victims sustain traumatic brain injury that can affect memory, thinking and body movements. New research now studies whether tiny bubbles caused by pressure waves may trigger that damage.
- Climate
Paris meeting yields climate agreement
It provides outlines and incentives for nations to curb fossil-fuel use. The goal is to limit global warming to no more than 2° Celsius (3.4 °Fahrenheit) above temperatures typical in the 1750s or earlier.
- Agriculture
New gene resists our last-ditch drug
Antibiotic resistance continues to grow. Now, scientists have found a tiny loop of DNA that resists a drug doctors use as a last line of defense.
- Animals
As big animals poop out
Whales move nutrients from deep ocean to surface waters. From there, nutrients move to land and fertilize continents. But the system is in trouble.
- Climate
Carbon dioxide has an unexpected effect in Antarctica
Antarctica’s frigid surface combined with excess carbon dioxide to create cooling above the remote continent, a new study finds.
- Health & Medicine
Too many Facebook friends?
Can you have too many Facebook friends? Maybe so, says a new study. It links heavy Facebook use to levels of a stress hormone called cortisol.
- Environment
Water: Getting the salt out
A new water-cleansing technology passes electricity through a flow of salty water. This will generate a zone of fresh water that can then be collected.
- Animals
Cool Jobs: Getting in your head
Experimental psychologists study animals and people to understand the roots of behavior.
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Most needy don’t attend free online courses
Massive open online courses, or MOOCs, were supposed to make first-class college offerings free to the masses. But new data show that people who would benefit most from these classes are not who are attending them.
- Health & Medicine
Nearsighted? Eye drops slow worsening vision
Myopia — or nearsightedness — is a growing problem worldwide. Low doses of an ancient drug could slow its development, without side effects.
