A wildlife camera trap survey of critically endangered West African lions finds they have no preference for parks over trophy-hunting areas, possibly because of poor habitat quality in the no-hunting zones.

A fluorescent image of murine hippocampal cells is the winning microscopy image from more than 400 submissions from 65 countries for Olympus’s 2019 Image of the Year Award.

The newly described Ikaria wariootia was a small, wormlike creature that marked an important evolutionary step between early multicellular organisms and more complex modern animals.

Ten endangered Manning River turtles were saved from flooding in New South Wales, Australia, following devastating fires on the country’s east coast.

A zinc-sensing protein found in fruit fly intestines regulates the insect’s growth and feeding behavior.

At Bessy II, a synchrotron radiation facility in Berlin, scientists use X-rays to study the structure of SARS-CoV-2.

An experimental tissue engineering treatment that addresses damage at both the inner core and outer ring of sheep intervertebral discs improves spinal structure and function.

An island songbird evolved into five populations of different color variants despite inhabiting territories just 10 kilometers apart.

A newly discovered fossilized skull is between 66.8 million and 66.7 million years old and bears similarities to modern-day chickens and ducks.