For many years, antibiotics have been added to animal feed to help control harmful bacteria and improve growth. But amid concerns about antibiotic resistance—when bacteria adapt to survive treatments that would normally kill ...
Plants & Animals
Sep 25, 2026
0
24
Dryland ecosystems cover 40% of the Earth's land surface and support more than 2 billion people. According to a new study published in Nature Climate Change, they're becoming increasingly unstable.
Earth Sciences
Sep 25, 2026
0
23
Our pupils become smaller under brighter conditions and larger under darker conditions. In addition to responding to changes in light, pupil size is influenced by attention, emotion and how visual objects are perceived.
Other
Sep 25, 2026
0
11
Scientists at Cornell University have found a human genetic element in a poxvirus and discovered that it is both an important gene for brain function and a jumping gene capable of moving and inserting itself into genomes. ...
Evolution
Sep 25, 2026
0
120
Climate change is bringing extreme summer heat to many more countries, but using the right plants in your garden could help keep your home a bit cooler next summer.
Environment
Sep 25, 2026
0
75
The atoms of the 5th element of the periodic table often find themselves in the company of each other, forming allotropes with a rich variety of structural motifs, each carrying a unique set of chemical and physical properties. ...
An electron's charge is normally fixed, like a coin you can't break into pieces. But if electrons are cooled close to absolute zero and trapped in a two-dimensional layer under a powerful magnetic field, they organize into ...
General Physics
Sep 25, 2026
2
170
Humans and domesticated animals have lived together for millennia, and this relationship has shaped their destinies in countless ways. Animals offered people food, companionship, traction (pulling plows), clothing and transportation.
Archaeology
Sep 25, 2026
0
39
The area covered by the Antarctic ozone hole peaked at more than 27 million square kilometers (10.4 million square miles) in September, the second-largest area ever observed for this time of year.
Environment
Sep 25, 2026
0
92
Researchers at the University of Chicago's Climate Impact Lab combined temperature forecasts with research on how heat affects death rates in more than 24,000 regions worldwide and found that the super El Niño could cause ...
Environment
Sep 25, 2026
0
17
