Sauropods, large, long-necked plant-eating dinosaurs such as Diplodocus and Brachiosaurus, are the largest animals to have ever walked the Earth, with the biggest weighing 80 tons.
Clearly, a single creature the size of 11 elephants would have needed vast amounts of food. How did multiple sauropod species live alongside one another in prehistoric ecosystems between 210 and 65 million years ago?
New research from the University of Bristol and the Natural History Museum, London details the community of the Late Jurassic Morrison Formation, a distinctive sequence of sedimentary rock in the western United States from which over 10 species of sauropod are known.
Researchers have created a molecule known as a peptide mimic that displays a functionally critical region of the virus that is universally conserved in all known species of Ebola. This new tool can be used as a drug target in the discovery of anti-Ebola agents that are effective against all known strains and likely future strains.
Ebola is a lethal virus that causes severe hemorrhagic fever with a 50 percent to 90 percent mortality rate. There are five known species of the virus. Outbreaks have been occurring with increasing frequency in recent years, and an unprecedented and rapidly expanding Ebola outbreak is currently spreading through several countries in West Africa with devastating consequences.
Using rats as model subjects, scientists have found that adolescents were at an increased risk of suffering negative health effects from sugar-sweetened beverage consumption.
Adolescent rats that freely consumed large quantities of liquid solutions containing sugar or high-fructose corn syrup (HFCS) in concentrations comparable to popular sugar-sweetened beverages experienced memory problems and brain inflammation, according to a new study. Neither adult rats fed the sugary drinks nor adolescent rats who did not consume sugar had the same issues.
Emphasizing weight in health definitions could be harmful to patients, finds an article in the Journal of Obesity.
Dr. Rachel Calogero of the School of Psychology at the University of Kent and colleagues recommend that this approach, known as 'weight-normative', is replaced by health care professionals, public health officials and policy-makers with a 'weight-inclusive' approach.
A microRNA molecule has been tagged as a surprisingly crucial player in managing cell survival and growth. The findings underscore the emerging recognition that non-coding RNAs – small molecules that are not translated into working proteins – help regulate basic cellular processes and may be key to developing new drugs and therapies.
Principal investigator Albert R. La Spada, MD, PhD, professor of cellular and molecular medicine at UC San Diego, and colleagues found that a microRNA known as let-7 controls autophagy through the amino acid sensing pathway, which has emerged as the most potent activator of mTORC1 complex activity.
was the title of a history book I had as a boy. Good things, in their way — without them, I wouldn’t be able to sit here talking to you all and meeting some very interesting people online. But some decidedly unpleasant customers do all too often hitch a ride.
There are lots of distance runners in the United States, there is no real gender gap about participation. But there is when it comes to competition, the difference is there.
A new paper in Evolutionary Psychology says that, on average, American men participate at track meets about three times as often as American women, and this difference has been consistent since the late 1990s. By contrast, at road races, the sex difference in participation has disappeared.
In the past, researchers have primarily used the genetic history of mothers to understand evolution in animals, but a new study has investigated ancestry across the red fox genome, including the Y chromosome (paternal line) and found some surprises about the origins, journey and evolution of the red fox, the world's most widely distributed land carnivore.
Conventional thinking based on maternal genetics suggested that red foxes of Eurasia and North America composed a single interconnected population across the Bering land bridge between Asia and Alaska.
By Margaret Brown, University of South Australia
Have you thought about how you would want to be treated if you cannot make your own decisions?-->
By Jon Entine, Genetic Literacy Project
Visit almost any anti-GMO website and you will find alarming headlines about the alleged dangers of GMO foods. They kill pigs, cows and sheep on farms and in lab studies! Humans are next!
(Inside Science) – Most of the time, for an individual animal, the bigger you are, the more likely you are to succeed. But sometimes, the little guy prevails – and scientists are just starting to understand how and when this happens.
“While there has been research on body size and aggressive conflict, no one had looked at why small species can prevail,” said Paul Martin, a biologist at Queen’s University in Kingston, Ontario.-->
Sodium is back in the health concern cycle and an analysis of data in the federal nationwide dietary intake survey known as "What We Eat in America NHANES 2009-2010," has led a team of Department of Agriculture (USDA) to conclude that, on any given day 49 percent of U.S. adults eat at least one sandwich, and sandwiches account for 20 percent of total daily sodium intake.
No one is seriously expecting to overturn Einstein's idea of time dilation, and instead the goal is often to find the possible limits. That means looking for deviations in experiments with increasing precision or under extreme conditions.
Seven Swedish women have had embryos reintroduced after receiving wombs from living donors and now one has delivered a healthy and normally developed boy, reveals the case study in The Lancet.
The uterus transplantation research project at the University of Gothenburg started in 1999 and the goal has been to enable women who were born without a womb or who have lost their wombs in cancer surgery to give birth to their own children.
Nine women in the project have received a womb from live donors – in most cases the recipient's mother but also other family members and close friends. The transplanted uterus was removed in two cases, in one case due to a serious infection and in the other due to blood clots in the transplanted blood vessels.