A Spotted Hyena Turns Up in Egypt After a 5,000 Absence
The animal killed two goats belonging to residents of Wadi Yahmib, a village within the sparsely populated Elba Protected Area of Egypt. To protect their livestock, the villagers chased down…
See Lucy Run, 3.2 Million Years Ago
More than three million years after her death, the early human ancestor known as Lucy is still divulging her secrets. In 2016, an autopsy indicated that the female Australopithecus afarensis,…
Why Trump Picked a Science Advisor, Michael Kratsios, Who Isn’t a Scientist
President Trump last week formally nominated Michael Kratsios, a member of the first Trump administration with no degrees in science or engineering, to be his science adviser. Science policy experts…
State Department Permits Distribution of H.I.V. Medications to Resume — for Now
The Trump administration on Tuesday issued a waiver for lifesaving medicines and medical services, offering a reprieve for a worldwide H.I.V. treatment program that was halted last week. The waiver,…
When ‘Cancer’ Gets in the Way of Treatment
Calling DCIS “cancer” can signal to patients that they face a medical emergency requiring immediate surgery and, often, radiation. Yet studies suggest that such harsh treatments may be unnecessary and…
In Seattle, a Meeting of 5,444 Mathematical Minds
The world’s largest gathering of mathematicians convened in Seattle from Jan. 8 to Jan. 11 — 5,444 mathematicians, 3,272 talks. This year the program diverged somewhat from the its traditional…
For Children in Rural Mozambique, the Future Comes Into Focus
Over the past year, Muanema Fakira noticed something odd about the eyes of her 1-year-old daughter Sumaya. Her left eye was cloudy. It did not gleam with curiosity or glint…
Trump Administration Halts H.I.V. Drug Distribution in Poor Countries
The Trump administration has instructed organizations in other countries to stop disbursing H.I.V. medications purchased with U.S. aid, even if the drugs have already been obtained and are sitting in…
The Hitchhiker’s Guide to the Hummingbird
Flower mites spend their lives slurping nectar and nibbling pollen in flowers throughout the tropics. To travel from one blossom to another, these tiny, eight-legged creatures hitch rides on the…
La gripe aviar en EE. UU. entra en una nueva fase
Cuando la gripe aviar afectó por primera vez al ganado lechero hace un año, parecía posible que afectara a unos pocos rebaños aislados y desapareciera tan rápidamente como había aparecido.…