Evolution

Scientists spotted a mouse at the summit of Llullaillaco, a 22,000-foot-tall volcano on the border of Chile and Argentina. Julia Rosen reports.

Originally published in June 1894

Rather than undergoing active chameleonlike color changes, glass frogs’ translucency allows light to bounce from their background and go through them—making their apparent color close to their setting.  

Experts explain how radiometric dating allows them to reconstruct ancient time lines

In a cave in northern Spain, stalagmites rich in organic matter are environmental record keepers

Newly analyzed remains depict the scope of a devastating event

Cooperation made Homo sapiens the last human species standing

Genomes and fossils reveal their remarkable evolutionary history

Detailed testing of the chemical signature of the Neolithic monument’s most prominent large stones pinpointed where they came from

Here are some brief reports about science and technology from all over, including one about how a lizard population responded to hurricanes by developing larger and stickier toe pads on average.

The paper that reported the animal’s discovery was retracted following new evidence from a similar fossil

Art museums are filled with centuries-old paintings with details of plants that today give us clues about evolution and breeding practices.