With a mate and a nest to protect, the male threespined stickleback is a fierce fish, chasing and biting other males until they go away.
Biotechnology
Nov 15, 2012
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Scientists have taken a step forward in helping to solve one of life's greatest mysteries – what makes us human?
Biotechnology
Nov 14, 2012
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(Phys.org)—New findings suggest that the ecology of blue whales (Balaenoptera musculus) – the largest living animal – has recently changed due to human activities. A team lead by researchers at Macquarie University ...
Plants & Animals
Nov 14, 2012
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(Phys.org)—A new way to visualize single-cell activity in living zebrafish embryos has allowed scientists to clarify how cells line up in the right place at the right time to receive signals about the next phase of their ...
Cell & Microbiology
Nov 13, 2012
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As they develop, vertebrate embryos form vertebrae in a sequential, time-controlled way. Scientists have determined previously that this process of body segmentation is controlled by a kind of "clock," regulated by the oscillating ...
Cell & Microbiology
Nov 13, 2012
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(Phys.org)—In an extraordinary example of altruistic behaviour, bacteria are capable of giving up their lives rather than allowing a viral infection to spread through their population. Now, new research has shown that viruses ...
Cell & Microbiology
Nov 12, 2012
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Scientists studying the genes and proteins of human cells infected with a common cold virus have identified a new gene identification technique that could increase the genetic information we hold on animals by around 70 to ...
Biotechnology
Nov 11, 2012
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MicroRNAs are essential regulators of the genetic program in multicellular organisms. Because of their potent effects, the production of these small regulators has itself to be tightly controlled. That is the key finding ...
Cell & Microbiology
Nov 8, 2012
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A team of scientists researching the effect of long-term molecular evolution (the study of DNA, RNA and proteins) have produced findings which suggest most amino-acid substitutions have different fitness effects in different ...
Biotechnology
Nov 6, 2012
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(Phys.org)—Scientists are unsure why proteins form improperly and cluster together in bunches, a hallmark of neurodegenerative diseases such as amyotrophic lateral sclerosis (ALS), Alzheimer's and Mad Cow Disease. In the ...
Cell & Microbiology
Nov 2, 2012
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