A male boreal toad waits for opportunities to mate near a Colorado mountain lake.
Frogs and toads are declining around the world, with many species on the brink of extinction. Acting in time means trying strategies without complete information about how likely they are to work.
Naval Aircrewman (Helicopter) 2nd Class Jansen Schamp rescues two dogs after floodwaters from Hurricane Harvey reached the grounds of a shelter in Vidor, Texas, Aug. 31, 2017.
Christopher LIndahl/U.S. Navy
During Hurricane Katrina in 2005, some people died rather than evacuating without their pets. Now emergency managers are required to include animals in their response plans.
As many people have had to wade through floodwaters, they need to be aware of the risk of infection and disease from contaminated waters.
AP Photo/David J. Phillip
As Houston continues to rescue residents whose homes were ruined, it also begins to deal with issues related to contaminated floodwaters and overflowing reservoirs. It won't be easy.
The rainfall from Harvey has now exceeded the amount from the previous record-bearer, Tropical Storm Amelia in 1978.
AP Photo/Charlie Riedel
An expert in extreme weather events explains why the rain – and thus flooding – associated with Hurricane Harvey has been 'unprecedented.'
Jimmy John’s tried to stop its workers from toiling for other sandwich makers.
AP Photo/David Goldman
Nearly one in five employed Americans is bound by a contract restricting moves to rival companies. Here's one way to make those arrangements less common.
A 1765 painting of Helios, the personification of the sun in Greek mythology.
The sun was worshiped as a deity in many cultures – and witnessing it get extinguished could be a particularly terrifying event.
Elvis Presley pictured on a Forever stamp in 2015.
Perhaps no one entertainer from the 20th century influenced pop culture as much as Elvis. And yet, by his own admission, the King turned to food for comfort. Here's why food takes on added meaning.
Protest against racial quotas during a rally outside the Supreme Court in Washington in 2015.
AP Photo/Jacquelyn Martin
Scholars argue that the complaint of bias against Harvard reflects a flawed understanding of affirmative action policies.
Healthy soil teems with bacteria, fungi, viruses and other microorganisms that help store carbon and fend off plant diseases. To restore soil, scientists are finding ways to foster its microbiome.
Ceilings are overrated.
AP Photo/J. Scott Applewhite
The US government reached the limits of its borrowing capacity in March and is fast approaching the point at which it will no longer be able to pay all its bills. What’s the big deal?
A red fox listening for prey under the snow in Yellowstone National Park. Noise can affect foxes and other animals that rely on their hearing when they hunt.
A recent study finds that noise from human activities is intruding into many parks and other protected areas. Creating quiet zones and noise corridors can help reduce impacts from noise pollution.
People currently speak 7,000 languages around the globe.
There's little research into origins of the geographic patterns of language diversity. A new model exploring processes that shaped Australia's language diversity provides a template for investigators.
Lake Powell, photographed April 12, 2017. The white ‘bathtub ring’ at the cliff base indicates how much higher the lake reached at its peak, nearly 100 feet above the current level.
The Colorado River supplies water to millions of people and irrigates thousands of miles of farmland. New research warns that climate change is likely to magnify droughts in the Colorado Basin.
A student in Cape Coast solves a math problem.
By embracing a style beyond the typical classroom lecture, math education can serve all of our students better.
Most students graduate with a ton of debt, which makes it harder to save for a home or retirement.
More than half of American families aren't able to save a dime to cover the cost of college, and the 529 college savings plan has done almost nothing to change that.
Hurricane Matthew approaching the east coast of Florida on Oct. 6, 2016.
Two atmospheric scientists explain how they weigh evidence such as ocean temperatures, wind speeds and other climate patterns to predict how many Atlantic hurricanes are likely to form this year.
Protesters holding a candlelight vigil at Yale President Salovey’s home.
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Graduate students are on hunger strike, demanding that Yale negotiate with their newly elected union. But Trump appointees could change the landscape of collective bargaining for everyone.
Students and striking workers occupy the projection hall of the Cannes Film Festival Palace to prevent showing of films in 1968.
AP Photo/Raoul Fornezza
At a festival intertwined with France's national identity, the tension of art, politics and commerce always looms.
Providing more support for families with children is a key way to grow the middle class.
Kristen Wyatt/AP Photo
Trump should drop his plans to cut taxes and instead look to some of our closest friends to learn what policies actually work to build and sustain a vibrant middle class.
A study of how the Young African Leaders Initiative handles its business exposes typical weaknesses, mainly lack of understanding local context, suffered by many foreign aid programmes.