cave

The crania of individuals who lived in the Yucatán Peninsula during the late Pleistocene show a high degree of anatomical diversity among them, and their skull shapes differ from that of other North American populations of the time.

The lay of the land shapes the diversity of groundwater-dependent salamanders.

The animal pictures and hand stencils were made in caves in Spain thousands of years before Homo sapiens arrived in Europe.

Two studies identify a signaling pathway that contributes to the fish’s sleeplessness.

Beetles cherish the dung they live and feed on.

Tooth fossils of cave dwellers represent the first known instance of our species inhabiting a rainforest.

NASA researchers have discovered ancient microbes locked inside minerals, suggesting a possible niche for interstellar life.

Two sleep researchers braved the subterranean environment of a Kentucky cave to see if they could train their bodies to abandon the cyclical rhythms of the 24-hour day.