Nature : Science World Report

Apr 10, 2012 10:40 AM EDT

Eggs of Enigmatic Dinosaur in Patagonia Discovered

An Argentine-Swedish research team has reported a 70 million years old pocket of fossilized bones and unique eggs of an enigmatic birdlike dinosaur in Patagonia. The study is published in the early on line edition of the journal Cretaceous Research.

Apr 10, 2012 10:25 AM EDT

Changes in Monkeys' Social Status Affect Their Genes

A female's social status affects how her genes turn on and off, and those who rank higher tend to be healthier -- so long as their social status doesn't decline, according to a study of rhesus macaques published in the April 9 Proceedings of the National Academy of Sciences.

Apr 10, 2012 07:08 AM EDT

Head and Body Lice Appear to be the Same Species, Genetic Study Finds

A new study offers compelling genetic evidence that head and body lice are the same species. The finding is of special interest because body lice can transmit deadly bacterial diseases, while head lice do not.

Apr 09, 2012 04:53 PM EDT

Loss of Predators in Northern Hemisphere Affecting Ecosystem Health

A survey done on the loss in the Northern Hemisphere of large predators, particularly wolves, concludes that current populations of moose, deer, and other large herbivores far exceed their historic levels and are contributing to disrupted ecosystems.

Apr 08, 2012 10:58 PM EDT

Plants Mimic Scent of Pollinating Beetles

The color and scent of flowers and their perception by pollinator insects are believed to have evolved in the course of mutual adaptation. However, an evolutionary biologist from the University of Zurich has now proved that this is not the case with the arum family at least, which evolved its scent ...

Apr 08, 2012 03:32 PM EDT

Study Shows Unified Process of Evolution in Bacteria and Sexual Eukaryotes

Bacteria are the most populous organisms on the planet. They thrive in almost every known environment, adapting to different habitats by means of genetic variations that provide the capabilities essential for survival. These genetic innovations arise from what scientists believe is a random mutation...

Apr 07, 2012 06:21 PM EDT

Polar Bears Have Symptoms of Mystery Disease: U.S. Agency

Symptoms of a mysterious disease that has killed scores of seals off Alaska and infected walruses are now showing up in polar bears, the U.S. Geological Survey (USGS) said on Friday.

Apr 06, 2012 09:59 AM EDT

Which Plants Will Survive Droughts, Climate Change?

New research by UCLA life scientists could lead to predictions of which plant species will escape extinction from climate change.

Apr 06, 2012 09:50 AM EDT

Researchers Discover Unique Suspension Technique for Large-scale Stem Cell Production

Post-doctoral researcher David Fluri and Professor Peter Zandstra at the University of Toronto's Institute of Biomaterials and Biomedical Engineering (IBBME) have developed a unique new technique for growing stem cells that may make possible cost-effective, large-scale stem cell manufacturing and re...

Apr 06, 2012 09:30 AM EDT

Scientists Discover New Threat to Birds Posed by Invasive Pythons

Smithsonian scientists and their colleagues have uncovered a new threat posed by invasive Burmese pythons in Florida and the Everglades: The snakes are not only eating the area's birds, but also the birds' eggs straight from the nest. The results of this research add a new challenge to the area's al...

Apr 06, 2012 06:18 AM EDT

Endangered Right Whale Protection Goes High-tech

Efforts to protect the North Atlantic right whale have gone high-tech with the creation of an iPad/iPhone application that can warn mariners when they approach an area where the highly endangered mammals are congregating.

Apr 04, 2012 11:13 AM EDT

Research Demonstrates Bacterial Contamination in Pharmacy Robots

Drug dispensing robots designed to quickly prepare intravenous medications in a sterile environment can harbor dangerous bacteria, according to a report in Infection Control and Hospital Epidemiology, the journal of the Society for Healthcare Epidemiology of America.