By demonstrating the close 'relatedness' of two primitive jawless fish, scientists begin to assemble a more accurate depiction of the early history of vertebrate evolution.

Biology - Plants & Animals

Apr 22, 2013 5 / 5 (1) 0

An international research team in including Christian Schlötterer and Alistair McGregor of the Vetmeduni Vienna has discovered a completely new mechanism by which evolution can change the appearance of an ...

Biology - Biotechnology

Apr 19, 2013 5 / 5 (1) 3

When we look around in nature, most species seem well adapted to their environment. Scientists have found, however, that species evolve relentlessly and that evolutionary changes occur at a surprisingly rapid pace.

Biology - Evolution

Apr 18, 2013 not rated yet 0

An international team of researchers has decoded the genome of a creature whose evolutionary history is both enigmatic and illuminating: the African coelacanth. A sea-cave dwelling, five-foot long fish with ...

Biology - Biotechnology

Apr 17, 2013 4.9 / 5 (17) 11 |

Eggs take a long time to produce in the ovary, and thus are one of a body's precious resources. It has been theorized that the body has mechanisms to help the ovary ensure that ovulated eggs enter the reproductive tract at ...

Biology - Cell & Microbiology

Apr 17, 2013 not rated yet 0 |

Evolution skeptics argue that some biological structures, like the brain or the eye, are simply too complex for natural selection to explain. Biologists have proposed various ways that so-called 'irreducibly complex' structures ...

Biology - Evolution

Apr 12, 2013 3.8 / 5 (12) 33 |

It's been known for decades that animals such as chimpanzees seek out medicinal herbs to treat their diseases. But in recent years, the list of animal pharmacists has grown much longer, and it now appears that the practice ...

Biology - Plants & Animals

Apr 11, 2013 4.9 / 5 (10) 0 |

A "garden variety" leaf is a broad, flat structure, but if the garden happens to be somewhere arid, it probably includes succulent plants with plump leaves full of precious water. Fat leaves did not emerge ...

Biology - Plants & Animals

Apr 11, 2013 5 / 5 (1) 0 |

Model calculations predict a sea level rise of about one meter by the end of this century and of up to five and a half meters by the year 2500. Until now there are few studies on the potential impacts of ...

Space & Earth - Earth Sciences

Apr 09, 2013 3 / 5 (2) 1

Ecologists and students from Rice University and the University of Guam will begin an ambitious four-year study this summer to examine how the loss of birds on Guam may be thinning the island's forests as ...

Biology - Ecology

Apr 08, 2013 4 / 5 (1) 0

The vocal lip-smacks that geladas use in friendly encounters have surprising similarities to human speech, according to a study reported in the Cell Press journal Current Biology on April 8th. The gelada ...

Biology - Plants & Animals

Apr 08, 2013 5 / 5 (3) 0 |

(Phys.org) —Ecologists are wary of non-native species, but along the shores of Cape Cod where grass-eating crabs have been running amok and destroying the marsh, an invasion of a predatory green crabs has ...

Biology - Ecology

Apr 03, 2013 5 / 5 (2) 0

Recent efforts by the Canadian government to curb the time allowed for environmental reviews over fears of adverse impact on economic development are misguided and unnecessary, according to research by scientists at the University ...

Space & Earth - Environment

Apr 02, 2013 5 / 5 (2) 0

Surface appearances can be so misleading: In most forests, the amount of carbon held in soils is substantially greater than the amount contained in the trees themselves.

Space & Earth - Environment

Apr 01, 2013 5 / 5 (1) 7 |

Mate choice is a key factor in the evolution of new animal species. The choice of a specific mate can decisively influence the evolutionary development of a species. In mice, the attractiveness of a potential ...

Biology - Plants & Animals

Mar 28, 2013 not rated yet 0