Learn about the declining fish population in the Mekong River and its impact on the fishermen

Encyclopædia Britannica, Inc.

Dairy farming in Denmark.

Encyclopædia Britannica, Inc.

Don't let film photography become a lost art.

Media Editors: Lauren Sims , Kira Helm

Encyclopædia Britannica, Inc.

It was a world before streaming services.

Media Editor: Lauren Sims

Contunico © ZDF Studios GmbH, Mainz

Overview of various Pacific coral reef sharks, notably the blacktip reef shark, gray reef shark, and nurse shark.

Encyclopædia Britannica, Inc./Kenny Chmielewski

The first circumnavigation of the globe was led by Portuguese navigator Ferdinand Magellan, who was charged with finding a Spanish route to the Moluccas. He was killed on Mactan Island in 1521, but the expedition returned to Spain under the command of Juan Sebastián del Cano.

Encyclopædia Britannica, Inc.

Learn more about the impact of World War II on China's history.

© MinuteEarth (A Britannica Publishing Partner)

The formation of meanders in straight rivers and streams is largely dependent on disturbances. At the site of the disturbance, such as a fallen log or a collapsing animal burrow, the path of the stream and the velocity of the current change, altering the overall behaviour of the watercourse and resulting in the development of meanders.