News tagged with evolutionary relationships
Move over, sponges: New evidence confirms Placozoans are the closest living surrogate to the ancestor of all animals
Biology /
Jan 27, 2009 |
4.8 / 5 (12) |
1
A new and comprehensive analysis confirms that the evolutionary relationships among animals are not as simple as previously thought. The traditional idea that animal evolution has followed a trajectory from ...
Getting a leg up on whale and dolphin evolution
Sep 24, 2009 |
4.3 / 5 (7) |
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When the ancestors of living cetaceans—whales, dolphins and porpoises—first dipped their toes into water, a series of evolutionary changes were sparked that ultimately nestled these swimming mammals into the ...
Analysis finds strong match between molecular, fossil data in evolutionary studies
Other Sciences / Archaeology & Fossils
Apr 28, 2009 |
4.8 / 5 (6) |
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During a seminar at another institution several years ago, University of Chicago paleontologist David Jablonski fielded a hostile question: Why bother classifying organisms according to their physical appearance, ...
Rapid burst of flowering plants set stage for other species
Other Sciences / Archaeology & Fossils
Feb 09, 2009 |
4.8 / 5 (5) |
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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 ...
Scientists Use MicroRNAs to Track Evolutionary History for First Time
Sep 09, 2009 |
5 / 5 (4) |
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(PhysOrg.com) -- A team of scientists from Yale University and Dartmouth College has used microRNA data to investigate the evolutionary relationships of annelids, which include earthworms, leeches and bristle ...
Scientists Unravel Evolution of Highly Toxic Box Jellyfish
Nov 18, 2009 |
4 / 5 (4) |
1
(PhysOrg.com) -- With thousands of stinging cells that can emit deadly venom from tentacles that can reach ten feet in length, the 50 or so species of box jellyfish have long been of interest to scientists ...
Revealing the evolutionary history of threatened sea turtles
Biology /
Oct 15, 2008 |
5 / 5 (1) |
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It's confirmed: Even though flatback turtles dine on fish, shrimp, and mollusks, they are closely related to primarily herbivorous green sea turtles. New genetic research carried out by Eugenia Naro-Maciel, ...
At the fungal farmer's market, only the best cyanobacteria are for sale
Aug 21, 2009 |
5 / 5 (1) |
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Lichens are the classic example of a symbiotic relationship. Both the fungal and photobiont components of the lichen benefit from the relationship and often are unable to survive without each other. Recent ...
