Historical Wonderchicken Believed to Be Ancestor of Modern Birds
Three-dimensional image of the skull of the world’s oldest-known anatomically modern bird
Three-dimensional image of the skull of the world’s oldest-known anatomically modern bird
An empty classroom is seen inside a government run school after officials ordered to close down all schools
A vial of the drug remdesivir is visually inspected at a Gilead manufacturing site in the United States
A man walks over what would usually be a very busy thoroughfare in Mexico City
A rare sea creature makes an appearance as travel business plummets
A woman responds from a window as a bus delivers a loudspeaker message from family and friends in Brussels
A new study suggests that adults who get at least eight hours of sleep a night may be less likely to get injured when exercising
Commuters wearing masks stand in a packed train at the Shinagawa Station in Tokyo
The justices of the U.S. Supreme Court gather for a group portrait