Fish fossils that are about 23 million years old give unprecedented insight into the evolutionary history of the gobioid order, one of the most species-rich groups among the modern bony fishes.

Other Sciences - Archaeology & Fossils

May 16, 2013 5 / 5 (1) 0 |

Fishes account for over half of vertebrate species, but while groups such as mammals, birds and reptiles have been fairly well understood by scientists for decades, knowledge about relationships among many types of fishes ...

Biology - Plants & Animals

Apr 19, 2013 4 / 5 (2) 1

(Phys.org)—Using CAT scans and making 3-D virtual reconstructions of the jaws of the ancient fish Helicoprion, Idaho State University researchers have solved some of the mysteries surrounding large spiral ...

Other Sciences - Archaeology & Fossils

Feb 27, 2013 4.9 / 5 (9) 1 |

With its deeply embedded roots, sturdy trunk and dense profusion of branches, the Tree of Life is a structure of nearly unfathomable complexity and beauty. While major strides have been made to establish ...

Biology - Evolution

Nov 06, 2012 5 / 5 (7) 7 |

Assassin bugs, so named because these insects lie in ambush for prey that they attack with speed and precision, are found all over the world. Nearly 140 species of these bugs are blood-sucking; because they ...

Biology - Plants & Animals

Oct 25, 2012 5 / 5 (3) 0 |

(Phys.org)—The Tree of Life is a beautiful and elegant metaphor that has proven deceptively difficult to reconstruct. The main culprit may be the overwhelming reliance on so-called concatenation methods, which ...

Biology - Biotechnology

Oct 15, 2012 4.3 / 5 (6) 5 |

(Phys.org)— A new study, published online in Biology Letters on September 19, has utilized a massive molecular dataset to reconstruct the evolutionary history of lizards and snakes. The results reveal a surp ...

Biology - Evolution

Sep 19, 2012 5 / 5 (4) 0

(Phys.org)—Many species of fruit fly lack the ability to adapt effectively to predicted increases in global temperatures and may face extinction in the near future, according to new research.

Biology - Plants & Animals

Sep 18, 2012 3 / 5 (2) 1 |

Jeanne Romero-Severson, associate professor of biological sciences at the University of Notre Dame, and her collaborators, are tracking the evolution of the live oaks of eastern North America, seeking to understand ...

Space & Earth - Environment

Jul 24, 2012 4 / 5 (2) 0

Researchers have reconstructed phylogenetic relationships among all 706 families of land plants.

Biology - Evolution

Apr 05, 2012 4 / 5 (2) 0

Snails, mussels, squids – as different as they may look, they do have something in common: they all belong to the phylum Mollusca, also called molluscs. An international team of researchers headed by Kev ...

Biology - Plants & Animals

Sep 21, 2011 3 / 5 (2) 0

University of Pennsylvania evolutionary biologists have resolved a long-standing paleontological problem by reconciling the fossil record of species diversity with modern DNA samples.

Biology - Evolution

Sep 19, 2011 4.8 / 5 (5) 4 |

The majority of orchids are found in habitats where light may be a limiting factor. In such habitats it is not surprising that many achlorophyllous (lacking chlorophyll), as well as green, orchids depend on ...

Biology - Plants & Animals

Jul 12, 2011 5 / 5 (1) 1 |

(PhysOrg.com) -- Contrary to what most people may think, the speciation rates of plants are not linked to the first development of a novel physical trait or mechanism. New international research shows that ...

Biology - Evolution

May 13, 2011 5 / 5 (2) 0

The movie Jurassic Park got one thing right: Those velociraptors hunted by night while the big plant-eaters browsed around the clock, according to a new study of the eyes of fossil animals. The study will ...

Other Sciences - Archaeology & Fossils

Apr 14, 2011 4.8 / 5 (8) 1 |