Some of the earliest predators that patrolled the oceans over 500 million years ago are also some of the largest animals to have lived at the time. However, a new fossil study led by Jianni Liu from the Northwest University of Xi'an in China, has shown that their tiny babies were also proficient killers.

A bite from a lancehead snake can be fatal. Species in the family, found throughout Central and South America, have venom that can disrupt blood clotting and cause hemorrhage, strokes and kidney failure.

The multibillion-dollar MIECHV program was formed as part of the 2010 Patient Protection and Affordable Care Act. It provides funding to organizations that offer home visiting services to improve maternal-child health. These organizations are required to demonstrate improvements over time, and the MIECHV program monitors this progress through specific benchmarks.

During the first days of life, the heart of a newborn mouse adapts to entirely new physiological conditions, larger volume loads and an increased energy demand. As a result, fundamental changes occur in the heart. Studies have shown that the heart of neonate mouse retains its ability to effectively repair tissue damage. This ability of the cardiac muscle to regenerate, however, gradually disappears during the first week of life.

New research by academics at the University of East Anglia (UEA) reveals how well fearful facial expressions are perceived in peripheral vision.

Although human vision has the highest resolution when we look directly at something, we see a much wider view of the visual world in our lower resolution peripheral vision. In fact, detecting signals of potential danger in our periphery - especially moving ones - is something our visual system is well adapted for.

Teenage girls who diet are more likely to engage in other health-compromising behaviours, including smoking, binge drinking, and skipping breakfast, a University of Waterloo study recently found.

The study found that, compared to girls who were not dieting at the time of initial data collection, those who were dieting were more likely to engage in one or more clusters of other risky behaviours three years later.

Our national forests and grasslands -- 193 million acres throughout the United States -- are a national treasure intended for use by everyone. But a new study by San Francisco State University Professor of Recreation, Parks & Tourism Nina Roberts and the U.S. Forest Service finds that many ethnic minorities are not using or enjoying these places.

White Americans' fear of losing their socioeconomic standing in the face of demographic change may be driving opposition to welfare programs, even though whites are major beneficiaries of government poverty assistance, according to new research from the University of California, Berkeley, and Stanford University.

Using the Titan supercomputer at the Oak Ridge Leadership Computing Facility (OLCF), a team of researchers has calculated a fundamental property of protons and neutrons, known as the nucleon axial coupling, with groundbreaking precision.

Led by Andre Walker-Loud of the US Department of Energy's (DOE's) Lawrence Berkeley National Laboratory, the project also used computing resources at DOE's Lawrence Livermore National Laboratory. The OLCF is a DOE Office of Science User Facility located at DOE's Oak Ridge National Laboratory (ORNL).

Conspiracy theories about government officials and the institutions they represent are widespread and rooted deep in U.S. history according to the co-author of two new social psychology studies which predict the likelihood that one will believe conspiracy beliefs or theories.