When researchers fed mosquitoes a drug used to treat people for obesity, the insects were less interested in hunting for their next human meal ticket. Karen Hopkin reports. -- Read more on ScientificAmerican.com

Deer populations have exploded in North American woodlands, changing forest ecology—and how sounds, like birdsong, travel through the trees. Christopher Intagliata reports. -- Read more on ScientificAmerican.com

Elephants have six sets of teeth over their lives, sometimes two sets at once. At those times, they can extract more nutrition from food and put on weight. -- Read more on ScientificAmerican.com

The rover Opportunity has called it quits after working for more than 14 years on Mars. -- Read more on ScientificAmerican.com

Although millennials' memory of recent pop tunes drops quickly, their ability to identify top hits from the 1960s through 1990s remains moderately high. Christopher Intagliata reports. -- Read more on ScientificAmerican.com

Conservation biologists can track the whereabouts of endangered species by the sounds they make, avoiding cumbersome trackers and tags. Christopher Intagliata reports. -- Read more on ScientificAmerican.com

An environmental assessment of the nation's largest desalination plant finds mixed results. Christopher Intagliata reports. -- Read more on ScientificAmerican.com

Humpback populations from the Atlantic and Indian oceans meet up south of Africa and trade song stylings. -- Read more on ScientificAmerican.com

By turning off certain brain cells, researchers were able to make mice sense painful stimuli—but not the associated discomfort. Karen Hopkin reports. -- Read more on ScientificAmerican.com

Javelin throwers chucking replicas of Neandertal spears were able to hit targets farther away, and with greater force than previously thought to be possible. Christopher Intagliata reports. -- Read more on ScientificAmerican.com

Researchers built a small, flexible device that harvests wi-fi, bluetooth and cellular signals, and turns them into DC electricity. Christopher Intagliata reports. -- Read more on ScientificAmerican.com

A few brief reports about international science and technology from Papua New Guinea to Kazakhstan, including one on the slow slide of Mount Etna in Italy. -- Read more on ScientificAmerican.com

Cod egg survival stays high with limited warming, but plummets when the temperature rises a few degrees Celsius in their current spawning grounds. -- Read more on ScientificAmerican.com

A species of hermit crab appears to have evolved a large penis to enable intercourse without leaving, and thus possibly losing, its adopted shell. -- Read more on ScientificAmerican.com

By coupling audio recordings with satellite data and camera traps, ecologists can keep their eyes—and ears—on protected tropical forests. Christopher Intagliata reports. -- Read more on ScientificAmerican.com

Though Saturn formed about 4.5 billion years ago, its rings were added relatively recently—only 100 million to 10 million years ago. Karen Hopkin reports. -- Read more on ScientificAmerican.com

Detroit residents declined an offer of free street trees—but were more willing to accept them if they had a say in the type of tree. Jason G. Goldman reports. -- Read more on ScientificAmerican.com

A total lunar eclipse will grace the skies this Sunday, January 20—and it may or may not be red. Christopher Intagliata reports. -- Read more on ScientificAmerican.com

The Mona Lisa effect is the illusion that the subject of a painting follows you with her gaze, despite where you stand. But da Vinci's famous painting doesn't have that quality. Christopher... -- Read more on ScientificAmerican.com

Ants infected with fungal pathogens steer clear of other cliques within the colony—avoiding wider infection, and allowing for a sort of immunity. Lucy Huang reports. -- Read more on ScientificAmerican.com

Climate change is shifting population numbers and nest building by resident and migratory birds in Europe—sometimes leading to deadly conflict. Christopher Intagliata reports. -- Read more on ScientificAmerican.com

In animal studies, a set of 24 genes involved in neural development, learning and memory, and cognition, seem to be associated with monogamy. Karen Hopkin reports. -- Read more on ScientificAmerican.com

Subject who saw a Superman poster were more likely to offer help than were people who saw another image. -- Read more on ScientificAmerican.com

Scientists are working to correct a genetic defect in cystic fibrosis patients by having them inhale RNA. Christopher Intagliata reports. -- Read more on ScientificAmerican.com

More than a quarter of the seedlings sampled at native plant nurseries were infected with pathogens—which could hamper restoration work. Christopher Intagliata reports. -- Read more on ScientificAmerican.com