Evolution

A new review digs into how the terrible lizards dealt with aches and pains

The Saharan silver ant feeds on other insects that have died on the hot sands, which it traverses at breakneck (for an ant) speeds.

Synthetic repellents such as DEET seem to mask the scent of our “human perfume”—making us less obvious targets for mosquitoes. Christopher Intagliata reports. 

The Dsup protein protects DNA under conditions that create caustic free radical chemicals.

Fossils found near Medicine Hat, Alberta, expand the saber-tooth cat’s range by more than 600 miles

Humans have a history of status division stretching back at least 4,000 years

William Kaelin, Jr., Peter Ratcliffe and Gregg Semenza share the 2019 Nobel Prize in Physiology or Medicine “for their discoveries of how cells sense and adapt to oxygen availability.” New therapies for cancer and conditions such as anemia are in the pipeline, based on these discoveries.  

The 2019 Nobel Prize in Physiology or Medicine goes to William G. Kaelin, Jr., Peter J. Ratcliffe and Gregg L. Semenza “for their discoveries of how cells sense and adapt to oxygen availability.” They identified molecular machinery that regulates gene activity in response to changing levels of oxygen.

About 70 percent of our planet’s surface is covered with water, and it plays an important role in our daily lives. But how did water get on Earth in the first place?

Scientists found eight species of nematodes living in California’s harsh Mono Lake—quintupling the number of animals known to live there. Christopher Intagliata reports.

By engineering mutations into fruit flies, scientists reconstructed how the bright orange butterflies came to tolerate milkweed toxins

Real megalodons weren’t nearly as enormous as their silver-screen counterparts