Why the flounder is flat

Flatfish are some of the most unusual vertebrate animals on our planet. They start out their life fully symmetrical, like any other fish, but undergo a spectacular metamorphosis where the symmetric larva is transformed into ...

Too much 'noise' can affect brain development

Using cutting-edge imaging technology, University of California, Irvine biologists have determined that uncontrolled fluctuations (known at "noise) in the concentration of the vitamin A derivative Retinoic acid (RA) can lead ...

How zebrafish rebuild the skeleton of amputated fins

Fish, in contrast to humans, have the fascinating ability to fully regenerate amputated organs. The zebrafish (Danio rerio) is a popular ornamental fish. When parts of its tailfin are injured by predators, or are experimentally ...

Mechanisms for continually producing sperm

Continually producing sperm over a long time is important to procreate the next generation. Researchers of the National Institute for Basic Biology, National Institutes of Natural Sciences in Japan, Ms. Kanako Ikami and Prof. ...

Argentine scientist who challenged Monsanto dies

Dr. Andres Carrasco, an Argentine neuroscientist who challenged pesticide regulators to re-examine one of the world's most widely used weed killers, has died. He was 67.

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