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Research Shows Ancient Kangaroos Likely Preferred Walking to Hopping

October 23, 2014

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Ancient Family of Sthenurine Kangaroos Likely Preferred Walking to Hopping

Based on a rigorous comparative analysis of kangaroo anatomy, biologists at Brown University reveal that the ancient family of sthenurine kangaroos likely preferred walking to hopping. Imagine that a time machine has transported you to the Australian outback 100,000 years ago. As you emerge, you see a huge kangaroo with a round rabbit-like face foraging […]

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Researchers Discover a New Signaling Pathway to Combat Excess Body Weight

October 17, 2014

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Researchers Discover a New Signaling Pathway to Combat Excess Body Weight

An international team of researchers has discovered a new signaling molecule capable of activating brown fat cells. The number of overweight persons is greatly increasing worldwide – and as a result is the risk of suffering a heart attack, stroke, diabetes or Alzheimer’s disease. For this reason, many people dream of an efficient method for […]

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Researchers Show Embryos Receive Parent-Specific Layers of Information

October 13, 2014

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Study Reveals Embryos Receive Parent Specific Layers of Information

New research from San Francisco State University sheds light on the multilayered process of how a sperm and egg pass along information needed for successful reproduction, revealing that embryos receive parent-specific layers of information. The information that interprets the genetic code in a new embryo differs depending on whether it comes from the father or […]

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Yale Biologists Describe DNA’s Security System

October 13, 2014

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Surveillance of Nuclear Pore Complex Assembly

In a newly published study, Yale biologists and colleagues describe a key quality control mechanism that protects new cells from inheriting defective nuclear pore complexes. As befitting life’s blueprint, DNA is surrounded by an elaborate security system that assures crucial information is imparted without error. The security is provided by a double membrane perforated by […]

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Researchers Uncover Molecular Process in the Brain that Transforms White Fat into Brown Fat

October 10, 2014

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Researchers Uncover Molecular Process that Transforms White Fat into Brown Fat

Yale scientists uncover how a molecular process in the brain that known to control eating transforms white fat into brown fat, impacting how much energy we burn and how much weight we can lose. The results are published in the October 9 issue of the journal Cell. Obesity is a rising global epidemic. Excess fatty […]

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Researchers Detail the Structure and Dynamics of the HIV Spike Protein

October 9, 2014

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Scientists Capture Images of the Protein HIV Uses to Infect Cells

In two newly published studies, researchers detail the structure and dynamics of the HIV spike protein, which is used by the virus uses to fuse with and enter cells. HIV is adept at eluding immune system responses because the protein it uses to infect cells is constantly changing. Now a team of researchers including scientists […]

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Temperature Variability Across the World Alters the Ecological Impacts of Seasons

October 8, 2014

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Study Reveals Climate Change Alters the Ecological Impacts of Seasons

New research from the Max Planck Institute for Developmental Biology and the University of Wyoming details how changes in temperature variability across the globe are altering the environment. If more of the world’s climate becomes like that in tropical zones, it could potentially affect crops, insects, malaria transmission, and even confuse migration patterns of birds […]

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GIANT Research Shows Large Number of Genes Linked to Human Height

October 7, 2014

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Research Shows Giant Number of Genes Linked to Human Height

A newly published study from the international Genetic Investigation of Anthropometric Traits (GIANT) Consortium gives scientists a better look at the biology of height and offers a model for investigating traits and diseases caused by many common gene changes acting together. Cambridge, Massachusetts — The largest genome-wide association study (GWAS) to date, involving more than […]

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Scientists Reveal New Information to Improve Vaccinations Against Pneumococcus Infection

September 30, 2014

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Scientists Reveal Six Changing Faces of Pneumococcus Infection

An international team of experts has revealed a genetic switch that controls pneumococcus infection and allows the bacterium to randomly change its characteristics into six alternative states. This research could pave the way to improved vaccines. Every ten seconds a human being dies from Streptococcus pneumoniae infection, also known as pneumococcus, making it a leading […]

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Salk Institute Discovers an On/Off Switch for Aging Cells

September 22, 2014

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Salk Institute Discovers an On Off Switch for Aging Cells

Researchers at the Salk Institute for Biological Studies have discovered an on-and-off “switch” in cells that may hold the key to healthy aging. In our bodies, newly divided cells constantly replenish lungs, skin, liver and other organs. However, most human cells cannot divide indefinitely–with each division, a cellular timekeeper at the ends of chromosomes shortens. […]

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Chimps Engage in Violent Behavior Regardless of Human Effects on Local Ecology

September 19, 2014

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Study Shows Deadly Violence a Natural Tendency in Chimps

Using data collected from 18 chimpanzee research sites, a newly published study shows that chimps engage in violent and sometimes lethal behavior regardless of human effects on local ecology. For decades, scientists studying chimpanzees in the wild have noted the ways our closest relatives are similar to humans — they form tightly knit social groups, […]

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Zebrafish Larva Eye Distinguishes Between Prey and Predator

September 18, 2014

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Eye of Zebrafish Larva Distinguishes Between Prey and Predator

A new study from the Max Planck Institute for Medical Research reveals how the eye of a zebrafish larva can already distinguish between prey and predator. Red or green? Small or large? Fast or slow? Humans and animals rely on their visual organs to classify objects in their environment. Decisions about how we best respond […]

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