Performing experiments in a river in Trinidad, a team of evolutionary biologists has found that male guppies continue to reproduce for at least ten months after they die, living on as stored sperm in females, who have much ...
Plants & Animals
Jun 12, 2013
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Researchers at the Universitat Autònoma de Barcelona are the first to have studied the effects of a heatwave on the genetic make-up of a species. The researchers have been monitoring the evolution of the fly Drosophila subobscura ...
Biotechnology
Jun 5, 2013
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(Phys.org) —It's been said metaphorically that too much focus on the trees can cause one to lose sight of the forest. In a similar check of perspective, a group of biologists, led by a University of California, Davis, scientist, ...
Biotechnology
May 21, 2013
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For hundreds of years, naturalists and scientists have identified new species based on an organism's visible differences. But now, new genetic techniques are revealing that different species can show little, to no visible ...
Plants & Animals
Mar 11, 2013
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The mating success of male butterflies is often lower if they are inbred. But how do female butterflies know which males to avoid? New research reveals that inbred male butterflies produce significantly less sex pheromones, ...
Plants & Animals
Mar 5, 2013
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If a genome is the blueprint for life, then the chief architects are tiny slices of genetic material that orchestrate how we are assembled and function, Yale School of Medicine researchers report Feb. 21 in the journal Developmental ...
Cell & Microbiology
Feb 21, 2013
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University of Utah researchers decoded the genetic blueprint of the rock pigeon, unlocking secrets about pigeons' Middle East origins, feral pigeons' kinship with escaped racing birds, and how mutations give pigeons traits ...
Biotechnology
Jan 31, 2013
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Humans share over 90% of their DNA with their primate cousins. The expression or activity patterns of genes differ across species in ways that help explain each species' distinct biology and behavior.
Biotechnology
Nov 6, 2012
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As a human fetus develops, its heart has to keep pace with the new body's ever-growing demands. Much of this is controlled by following genetic blueprints, but the embryonic heart also matures in response to the intense stresses ...
Optics & Photonics
Oct 31, 2012
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Sumatran orangutans have undergone a substantial recent population decline, according to a new genetic study, but the same research revealed the existence of critical corridors for dispersal migrations that, if protected, ...
Plants & Animals
Oct 16, 2012
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