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Coral Reef Fishes Prove Invaluable in the Study of Evolutionary Ecology
May 16, 2013 — Coral reef fish species have proven invaluable for experimental testing of key concepts in social evolution and already have yielded insights about the ultimate reasons for female reproductive ... > full story -
Stem-Cell-Based Strategy Boosts Immune System in Mice
May 16, 2013 — Raising hopes for cell-based therapies, researchers have created the first functioning human thymus tissue from embryonic stem cells in the laboratory. The researchers showed that, in mice, the ... > full story -
Study Brings Greater Understanding of Tumor Growth Mechanism
May 16, 2013 — A new study has for the first time revealed how the loss of a particular tumor suppressing protein leads to the abnormal growth of tumors of the brain and nervous ... > full story -
Vicious Cycle: Obesity Sustained by Changes in Brain Biochemistry
May 16, 2013 — Scientists have shown that in the brain cells of rats, obesity impedes the production of a hormone that curbs appetite and inspires calorie burning. The root cause appears to be a breakdown in the ... > full story -
Genetic Risk for Schizophrenia Is Connected to Reduced IQ
May 16, 2013 — The relationship between the heritable risk for schizophrenia and low intelligence (IQ) has not been clear. Schizophrenia is commonly associated with cognitive impairments that may cause functional ... > full story -
Spiders: Capturing Prey in Silken Netting and Sticky Hairs
May 16, 2013 — The great ecological success of spiders is often substantiated by the evolution of silk and webs. Biologists have now found an alternative adaptation to hunting prey: hairy adhesive pads, so called ... > full story -
Herpes Infections: Natural Killer Cells Activate Hematopoiesis
May 16, 2013 — Infections can trigger hematopoiesis at sites outside the bone marrow – in the liver, the spleen or the skin. Researchers now show that a specific type of immune cell facilitates such ... > full story -
X-Ray Tomography of Living Frog Embryo
May 16, 2013 — Classical X-ray radiographs provide information about internal, absorptive structures of organisms such as bones. Alternatively, X-rays can also image soft tissues throughout early embryonic ... > full story -
Paleontology: The Eloquence of Otoliths Seen in a 23-Million-Year-Old Fish Fossil
May 16, 2013 — Fish fossils that are about 23 million years old give unprecedented insight into the evolutionary history of the gobioid order, one of the most species-rich groups among the modern bony ... > full story -
Natural 'Keystone Molecules' Punch Over Their Weight in Ecosystems
May 16, 2013 — Ecosystems are disproportionately influenced by "keystone molecules" that have powerful behavioral effects and contribute to ecosystem structure, according to a new general theory. The chemicals can ... > full story
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