Climate changes profoundly influenced the rise and fall of six distinct, successive waves of mammal species diversity in North America over the last 65 million years, shows a novel statistical analysis led ...

Biology - Evolution

Dec 26, 2011 4 / 5 (17) 16 |

The history of evolution is periodically marked by explosions in biodiversity, as groups of species try out a wide range of shapes and sizes. With a new analysis of two such adaptive radiations in the fossil ...

Biology - Evolution

Dec 20, 2011 5 / 5 (6) 8 |

The impact of hatcheries on salmon is so profound that in just one generation traits are selected that allow fish to survive and prosper in the hatchery environment, at the cost of their ability to thrive ...

Biology - Evolution

Dec 19, 2011 4.4 / 5 (14) 100 |

Scientists are a step closer to explaining one of the most enduring mysteries of modern biology; why are there males and females?

Biology - Evolution

Dec 19, 2011 5 / 5 (4) 2 |

An international team of researchers studying sound production in perch-like fishes has discovered a link between two unrelated lineages of fishes, taking researchers a step closer to understanding the evolution of one of ...

Biology - Evolution

Dec 15, 2011 not rated yet 0 |

(PhysOrg.com) -- Evolutionary biologists have long been puzzled by the question of why human beings have retained body hair. Most agree that changes to the fur that our ancestors sported came about as a means ...

Biology - Evolution

Dec 15, 2011 4 / 5 (8) 19 |

Starving orangutans in Borneo may be teaching us new lessons about human evolution.

Biology - Evolution

Dec 13, 2011 4 / 5 (1) 1

(PhysOrg.com) -- Two of the most basic questions in the study of human evolution revolve around why early people started walking around on two feet instead of four and why they lost their fur, especially in ...

Biology - Evolution

Dec 13, 2011 4.6 / 5 (7) 2 |

(PhysOrg.com) -- Imagine the wealth of information that would be at our fingertips if we could understand the genetic basis and evolutionary history that underlies the vast diversity in form and function seen within mammals.

Biology - Evolution

Dec 13, 2011 5 / 5 (1) 4

A study of South American songbirds completed by the Department of Biology at Queen's University and the Argentine Museum of Natural History, has discovered these birds differ dramatically in colour and song yet show very ...

Biology - Evolution

Dec 08, 2011 4.2 / 5 (5) 0 |

Caenorhabditis are usually thought of as soil nematodes, happily living in compost heaps. The famous (scientifically speaking) Caenorhabditis elegans has provided a wealth of information about developmental processes and ce ...

Biology - Evolution

Nov 21, 2011 not rated yet 0

(PhysOrg.com) -- One of the big problems evolutionary biologists have to wrangle with is in trying to explain why members of an individual species aren’t more alike. If say, high testosterone in males makes them more ...

Biology - Evolution

Nov 18, 2011 4.4 / 5 (5) 0 |

Most human populations are the product of a series of range expansions having occurred since modern humans left Africa some 50,000 years ago to colonize the rest of the world, but how have these processes influenced today's ...

Biology - Evolution

Nov 03, 2011 4.6 / 5 (11) 3 |

What do a typical garden snail and an octopus have in common, besides the occasional appearance on the plates of adventurous diners? More than you may realize. Both are mollusks, a group of animals that includes ...

Biology - Evolution

Nov 02, 2011 not rated yet 1 |

During human evolution our ancestors mated with Neanderthals, but also with other related hominids. In this week's online edition of PNAS (Proceedings of the National Academy of Sciences), researchers from Uppsala Univer ...

Biology - Evolution

Oct 31, 2011 4.5 / 5 (11) 8 |