Size Doesn't Matter To Fighting Fiddler Crabs:
A person's home may be their castle and in the world of the fiddler crabs having the home advantage makes it a near certainty that you'll win a battle against an intruder - regardless of your opponent's size. That's one of the findings of a new study by a research team from The Australian National University. The team, working from the University's Darwin research station, set out to discover why male fiddler crabs have an 'owner advantage' when defending their burrow that equates to a 92 per cent success rate.
Researchers Use Magnetic Fields, Rather Than Drugs, To Control Cellular Signaling:
Researchers at Children's Hospital Boston have developed a new "nanobiotechnology" that enables magnetic control of events at the cellular level. They describe the technology, which could lead to finely-tuned but noninvasive treatments for disease, in the January issue of Nature Nanotechnology (published online January 3).
Progeny Of Blind Cavefish Can 'Regain' Their Sight:
Blind cavefish whose eyes have withered while living in complete darkness over the course of evolutionary time can be made to see again. In some cases, the offspring of mated pairs originating from distinct cave populations regain vision, researchers found. The result shows that mutations in different genes are responsible for eye loss in separate cavefish lineages that may not have been exposed to light for the last one million years.
Molecular Basis Of Monarch Butterfly Migration Discovered:
Since its discovery, the annual migration of eastern North American monarch butterflies has captivated the human imagination and spirit. That millions of butterflies annually fly a few thousand miles to reach a cluster of pine groves in central Mexico comprising just 70 square miles is, for many, an awesome and mysterious occurrence. However, over the past two decades, scientists have begun to unveil the journey for what it is: a spectacular result of biology, driven by an intricate molecular mechanism in a tiny cluster of cells in the butterfly brain.
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