An increased production of ribosomes may underlie cell migration and relate to cancer metastasis, according to a new study.

Paleontologists find a fossil of a dinosaur, Ambopteryx longibrachium, with membranous wings, in China.

Black women and Native American women die roughly three times more often than white women, and 60 percent of all maternal deaths may be preventable.

Microrobots kill bacteria and clean surfaces covered in biofilm.

The cells, derived from induced pluripotent stem cells, are in testing as an immunotherapy for cancer patients with solid tumors.

Fossils of two dinosaur skeletons found in New Mexico are from a species new to science that lived 92 million years ago.

The intergovernmental organization reports “accelerating” species extinctions, with 25 percent of animal and plant species evaluated under threat of extinction.

Scientists map the presence of Helicobacter pylori in the stomach of mice, showing where the bacteria colonize the gastric glands.

A study of hundreds of gay couples finds that HIV-positive men taking antiretroviral medication don’t pass the virus to their partners, even when having unprotected sex.

A robot model of a winged but flightless dinosaur suggests the dinosaur may have flapped its wings while moving on the ground.

A pathogenic amoeba species ingests parts of human cells and steals human cell membrane proteins to display on its own surface.

If the changes are passed, a member can be ousted for a proven case of sexual harassment by a two-thirds majority vote by the academy’s Council.