News tagged with diversification
Oldest organism with skeleton discovered in Australia
A team of paleontologists has discovered the oldest animal with a skeleton. Called Coronacollina acula, the organism is between 560 million and 550 million years old, which places it in the Ediacaran period ...
Other Sciences / Archaeology & Fossils
Mar 08, 2012 |
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New research challenges evolutionary theory
(PhysOrg.com) -- New research from the University of Reading overturns conventional views on the nature of evolution, arguing that mammals did not develop into their many different forms in one early and rapid ...
Oct 20, 2011 |
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Study of fish fossil shows that 'head-first' diversity drives vertebrate evolution
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 ...
Dec 20, 2011 |
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Rapid burst of flowering plants set stage for other species
A new University of Florida study based on DNA analysis from living flowering plants shows that the ancestors of most modern trees diversified extremely rapidly 90 million years ago, ultimately leading to the formation of ...
Other Sciences / Archaeology & Fossils
Feb 09, 2009 |
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Toward resolving Darwin's 'abominable mystery'
What, in nature, drives the incredible diversity of flowers? This question has sparked debate since Darwin described flower diversification as an 'abominable mystery.' The answer has become a lot clearer, ...
Sep 16, 2010 |
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Vertebrate jaw design locked 400 million years ago
More than 99 per cent of modern vertebrates (animals with a backbone, including humans) have jaws, yet 420 million years ago, jawless, toothless armour-plated fishes dominated the seas, lakes, and rivers. ...
Jul 06, 2011 |
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Species accumulate on Earth at slower rates than in the past: study
Computational biologists at the University of Pennsylvania say that species are still accumulating on Earth but at a slower rate than in the past.
Sep 29, 2010 |
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Research shows that environmental factors limit species diversity
It's long been accepted by biologists that environmental factors cause the diversity -- or number -- of species to increase before eventually leveling off. Some recent work, however, has suggested that species diversity continues ...
Dec 20, 2010 |
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Birds of a feather may not always flock together
(PhysOrg.com) -- DNA mutation rates are the deciding factor in the battle of the birds, which sees songbird species disproportionately outnumbering other bird orders, according to research from The Australian ...
Nov 12, 2010 |
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Diversification of land plants
Researchers have reconstructed phylogenetic relationships among all 706 families of land plants.
Apr 05, 2012 |
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DNA duplications may be responsible for genomic-based diseases
An important part of saving a species is often understanding its DNA. Through a collaborative effort including 14 scientists representing organizations across Europe and the United States, researchers have been able to analyze ...
Dec 28, 2011 |
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Why are orchids so successful?
In terms of diversity, orchids are one of the most successful groups of flowering plants, with over 22,000 species. Both pollinating animals and mycorrhizal fungi are believed to have been important in the ...
Sep 13, 2011 |
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'Hidden' differences of chromosome organization become visible
Why different species have dissimilar sets of chromosomes? Why the differentiated species often conserve apparently identical chromosome complements? Furthermore, why, while chromosome rearrangements can considerably ...
Aug 25, 2011 |
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Earliest Democricetodon (Cricetid rodent) found in the Early Miocene of the Junggar Basin, China
According to a paper published in the latest issue of Vertebrata PalAsiatic 2011(4), palontologists from Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, have identi ...
Other Sciences / Archaeology & Fossils
Nov 09, 2011 |
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Palms as a model for rainforest evolution
(PhysOrg.com) -- The first complete genus-level dated phylogeny of palms reveals insights into the evolution of rainforests.
Nov 08, 2011 |
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