Latest science news in Biology & Nature

VIDEO: Invading Starfish Plague Reefs

11 years ago from National Geographic

A type of starfish (or sea star), harmless to humans and most marine life, is destroying coral reefs off southern Japan.

Fish ears keep sex change record

11 years ago from Science Alert

Research has found that fish that change sex have a distinctive record of their gender changes in a certain ear structure, like the age rings that form inside a tree.

Antioxidants Are Unlikely To Prevent Aging, Study Suggests

11 years ago from Science Daily

Diets and beauty products which claim to have anti-oxidant properties are unlikely to prevent aging, according to new research. Scientists in England say this is because a key 50-year-old theory...

Bad back may stop cane toad invasion

11 years ago from Reuters:Science

SYDNEY (Reuters) - It seems a bad back might be the only thing that can stop the relentless spread of Australia's poisonous cane toads, which are killing native animals as...

New RNA Processing Mechanism And New Class Of Small RNAs

11 years ago from Science Daily

Scientists report their discoveries of a previously unknown mechanism in the nucleus that processes non-coding RNA molecules to generate what might be a new class of small RNAs.

Study: Cell movements are totally modular

11 years ago from UPI

STANFORD, Calif., Dec. 1 (UPI) -- U.S. medical scientists say they've found distinct groups of proteins that each control one of four simple activities involved in cells' collective...

Immune cells reveal fancy footwork

11 years ago from Physorg

Our immune system plays an essential role in protecting us from diseases, but how does it do this exactly? Dutch biologist Suzanne van Helden discovered that before dendritic cells move...

Mammals can be stimulated to regrow damaged inner retina nerve cells

11 years ago from Biology News Net

Researchers at the University of Washington (UW) have reported for the first time that mammals can be stimulated to regrow inner nerve cells in their damaged retinas. Located in the...

Scripps Research scientists shed light on how DNA is unwound so that its code can be read

11 years ago from Biology News Net

LA JOLLA, CA—November 24, 2008—Researchers at The Scripps Research Institute have figured out how a macromolecular machine is able to unwind the long and twisted tangles of DNA within a...

Scientists shed light on evolution of gene regulation

11 years ago from Biology News Net

Scientists at Penn State have shed light on some of the processes that regulate genes -- such as the processes that ensure that proteins are produced at the correct time,...

Proteins strangle cell during division

11 years ago from Biology News Net

A Swedish research group, partly financed by NWO, has discovered a new mechanism for cell division in a microorganism found in extremely hot and acidic conditions. The results of the...

First comprehensive 'inventory' of life in Antarctica

11 years ago from Physorg

The first comprehensive "inventory" of sea and land animals around a group of Antarctic islands reveals a region that is rich in biodiversity and has more species than the Galapagos....

Dictyostelium cells shown to lay 'breadcrumb trail' as first step in multicellular formation

11 years ago from

When starved of their food source and then presented with a chemoattractant signal like cAMP, individual Dictyostelium cells acquire a polarised morphology and aggregate to form a migrating stream. This...

Claudin 11 stops the leaks in neuronal myelin sheaths

11 years ago from

Devaux and Gow demonstrate how a tight junction protein called claudin 11 makes the neuronal myelin sheath a snug fit. The study will be published in the 1 December 2008...

UNAIDS chief prepares to pass the torch

11 years ago from News @ Nature

On World AIDS Day, Peter Piot assesses the evolution of the epidemic.

Persistent Pollutant May Promote Obesity

11 years ago from Science Daily

A persistent pollutant, tributyltin, has effects on gene activity in a wide range of animal species at concentrations of parts per billion. Tributyl tin and its chemical relatives bind to...

EU to search out cyber criminals

11 years ago from BBC News: Science & Nature

Police forces will be remotely searching hard drives as Europe steps up the fight against hi-tech thieves.

Congo's war-baby gorillas bring hope for endangered species

11 years ago from Physorg

High above the war-battered plain, a giant silverback gorilla ruminatively strips a plant of its leaves with green tombstone teeth. Five females nearby suckle their babies. The world can celebrate...

Genomic Causes Of Certain Type Of Leukemia Relapse Identified

11 years ago from Science Daily

Scientists have identified distinctive genetic changes in the cancer cells of children with acute lymphoblastic leukemia that cause relapse.

Blocking A Neuropeptide Receptor Decreases Nicotine Addiction

11 years ago from Science Daily

Scientists have found that blocking the receptor for a specific neuropeptide, short chains of amino acids found in nerve tissue, significantly decreases the desire for nicotine in animal models. In...

Why Are So Many Infectious Diseases Jumping From Animals To Humans?

11 years ago from Science Daily

The first trench-to-bench field guide for tracking wild primate infectious diseases provides integrated information that could help scientists identify infection patterns and prevent epidemics.

Want Sustainable Fishing? Keep Only Small Fish, And Let The Big Ones Go

11 years ago from Science Daily

Scientists analyzed fisheries data to determine the effect of the "keep the large ones" policy that is typical of fisheries. What they found is that the effect of this policy...

Bug Spy: U.S. Develops Tiny Flying Robots

11 years ago from CBSNews - Science

U.S. military engineers are trying to design flying robots disguised as insects that could one day spy on enemies and conduct dangerous missions without risking lives.

Zookeepers Solve Polar Bear Mating Mystery

11 years ago from CBSNews - Science

Puzzled Japanese zookeepers have cleared up a mystery over a lack of chemistry between a couple of polar bears as both turn out to be female, a Japanese zoo said...

Mapping brain cancer to find best treatment

11 years ago from Physorg

There's never a good time to have brain cancer. Still, Karl DuBose tries to look on the bright side. "It's weird to say, but today - and here in Seattle...

Scientists say they've discovered bacterium that will fight invasive mussels

11 years ago from Physorg

Researchers seeking to slow the spread of invasive zebra and quagga mussels in American lakes and rivers have found a bacterium that appears to be fatal to the problematic species...

Salmon-tracking network challenges conventional wisdom

11 years ago from Physorg

They were two of the 1,000 juvenile salmon implanted with almond-sized transmitters as they headed out of the Rocky Mountains, down the Snake River bound for the sea.

Quick action possible on federal wolf protections

11 years ago from Physorg

Federal wildlife managers hope to remove wolves from the endangered species list in Idaho and Montana before President-elect Barack Obama takes office.