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tag bird flu cell molecular biology evolution ecology

Single-handed flu combat?
Tia Ghose | Feb 22, 2009 | 3 min read
A single antibody may soon provide a one-size-fits-all antiviral for multiple strains of influenza. Researchers in the online version of Nature Structural and Molecular Biology have identified a human antibody that disarms the flu virus by jamming the machinery it uses to fuse with host cells. Hemagglutinin and antibody in complex Image: William Hwang Genes that code the influenza surface protein hemagglutinin are constantly reshuffled and tweaked, helping the virus hide from the immune syst
A pair of zebra finches in a cage
Animal Divorce: When and Why Pairs Break Up
Catherine Offord | Jun 1, 2022 | 10+ min read
Many species of birds and other vertebrates form pair bonds and mate with just one other individual for much of their lives. But the unions don’t always work out. Scientists want to know the underlying factors.
Deliberating Over Danger
The Scientist | Apr 1, 2012 | 10+ min read
The creation of H5N1 bird flu strains that are transmissible between mammals has thrown the scientific community into a heated debate about whether such research should be allowed and how it should be regulated.
Outsmarting Influenza's Rapid Evolution
Philip Hunter | Jun 29, 2003 | 7 min read
Twice yearly, World Health Organization health officials meet to strategize against influenza, a malady that kills at least 250,000 people each year. In a chess match of sorts, they work to predict their opponent's next move, in this case by modifying vaccines to compensate for changes in the critical viral antigen hemagglutinin, which triggers the host's long-term immune memory. It takes several months to manufacture and distribute flu vaccines in sufficient quantities to inoculate vulnerabl
a microscope image of a rotifer
Bacterial Enzyme Keeps Rotifers’ Transposable Elements in Check
Christie Wilcox, PhD | Mar 3, 2022 | 5 min read
Jumping genes in bdelloid rotifers are tamped down by DNA methylation performed by an enzyme pilfered from bacteria roughly 60 million years ago, a study finds.
two quails
Chromosomal Rearrangement Linked to Less Mobile Quail
Chloe Tenn | Dec 7, 2021 | 5 min read
The Scientist interviews evolutionary biologist Carles Vilà about how a large genomic inversion detected in common quail affects the birds’ physical characteristics and migratory behaviors.
bacteria inside a biofilm
How Bacterial Communities Divvy up Duties
Holly Barker, PhD | Jun 1, 2023 | 10+ min read
Biofilms are home to millions of microbes, but disrupting their interactions could produce more effective antibiotics.
Who Sleeps?
The Scientist and Jerome Siegel | Mar 1, 2016 | 10+ min read
Once believed to be unique to birds and mammals, sleep is found across the metazoan kingdom. Some animals, it seems, can’t live without it, though no one knows exactly why.
To Effectively Discuss Evolution, First Define 'Theory'
Ricki Lewis | May 11, 1997 | 9 min read
Evolution is the backbone of modern biology, but life scientists sometimes face audiences who perceive it as a threat to their religious beliefs. With laws such as North Carolina House Bill 511, proposed in March as an attempt to "ensure that evolution is not taught as fact in North Carolina public schools," scientists are being asked to clarify the distinction between science and religion. Professors at small Southern and Midwestern colleges seem to have the most experience in discussing-and s
The Genetics of Society
Claire Asher and Seirian Sumner | Jan 1, 2015 | 10 min read
Researchers aim to unravel the molecular mechanisms by which a single genotype gives rise to diverse castes in eusocial organisms.

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