Veterinary antibiotics (VAs) are widely used in many countries worldwide to treat disease
and protect the health of animals. They are also incorporated into animal feed to improve …

Wild piscivorous fish, mammals, and birds may be at risk for elevated dietary methylmercury
intake and toxicity. In controlled feeding studies, the consumption of diets that contained Hg …

Whether the stellar initial mass function (IMF) is universal or is instead sensitive to
environmental conditions is of critical importance: The IMF influences most observable …

We present a DNA library preparation method that has allowed us to reconstruct a high-
coverage (30×) genome sequence of a Denisovan, an extinct relative of Neandertals. The …

Excavations of a complex of caves in the Sierra de Atapuerca in northern Spain have
unearthed hominin fossils that range in age from the early Pleistocene to the Holocene. One …

Neandertals, the closest evolutionary relatives of present-day humans, lived in large parts of
Europe and western Asia before disappearing 30,000 years ago. We present a draft …

We report results on the performance of a free-electron laser operating at a wavelength of
13.7 nm where unprecedented peak and average powers for a coherent extreme-ultraviolet …

Ascertaining the impact of uncharacterized perturbations on the cell is a fundamental
problem in biology. Here, we describe how a single assay can be used to monitor hundreds …

To provide the first nationwide reconnaissance of the occurrence of pharmaceuticals,
hormones, and other organic wastewater contaminants (OWCs) in water resources, the US …

We present a high-quality genome sequence of a Neanderthal woman from Siberia. We
show that her parents were related at the level of half-siblings and that mating among close …