Amphidromous fish—which migrate between freshwater streams and the sea—can move between habitats thanks to ocean currents.

At least 135 people have been killed in “catastrophic” flash flooding across Texas, while several others remain missing.

Researchers from across the globe make use of these unique facilities. Learn more with Symmetry ’s updated interactive map. Since the map’s first release in 2013, national labs have closed some of ...

Tophat Gudetama hides in a different location each week in Hello Kitty Island Adventure. We explain where to find him this week in our guide.

Ten Pacific Island countries which are members of the World Bank have a population of about 3.4 million people, scattered across an area equivalent to 15 percent of the globe’s surface, with a ...