News tagged with earthworms
Study shows earthworms to blame for decline of ovenbirds in northern Midwest forests
A recent decline in ovenbirds (Seiurus aurocapilla), a ground-nesting migratory songbird, in forests in the northern Midwest United States is being linked by scientists to a seemingly unlikely culprit: earthw ...
Feb 29, 2012 |
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Biocomplexity researchers announce multi-scale model of early embryonic development in vertebrates
(PhysOrg.com) -- Scientists at Indiana University's Biocomplexity Institute have developed a computational model for the intricate cellular dance that occurs during the earliest stages of animal development ...
Oct 21, 2011 |
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Pressurized vascular systems for self-healing materials
Artificial microvascular systems for self-repair of materials damage, such as cracks in a coating applied to a building or bridge, have relied on capillary force for transport of the healing agents. Now, researchers at the ...
Sep 29, 2011 |
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Non-native earthworms are damaging hardwood forests
Think of earthworms and a few things come to mind: they make great bait for fishing, they aerate the soil, and they're an excellent addition to a compost pile. But what a lot of people don't know is many earthworms are actually ...
Sep 13, 2011 |
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Forests under threat from exotic earthworm invasion
It is widely acknowledged that human beings are largely responsible for the widespread alteration of ecosystems on the planet. A recent study by Dara Seidl and Peter Klepeis of Colgate University in New York traces the ways ...
Sep 01, 2011 |
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Seven new mice species found in Philippines
Seven new species of mice have been found by local and US scientists in the mountains of the Philippines, the government's environment department said Wednesday.
Jun 15, 2011 |
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Study finds greenhouse gas reduction strategy may be safe for soil animals
A new study has found that an emerging tool for combating climate change may cause less harm to some soil animals than initial studies suggested.
Jun 01, 2011 |
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Nanomaterials in our environment
The manufacturing of nanomaterials has been steadily on the rise in the medical, industrial, and scientific fields. Nanomaterials are materials that are engineered to have dimensions less than 100 nanometers and have very ...
Nanotechnology / Bio & Medicine
Dec 15, 2010 |
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The worm that turned on heavy metal
Researchers in South America have studied the viability of using earthworms to process hazardous material containing high concentrations of heavy metal for the bioremediation of old industrial sites, landfill and other potentially ...
Dec 06, 2010 |
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Segmentation is the secret behind the extraordinary diversification of animals
Segmentation, the repetition of identical anatomical units, seems to be the secret behind the diversity and longevity of the largest and most common animal groups on Earth. Researchers from CNRS and Universite ...
Jul 16, 2010 |
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Hedgehogs adapt to life in the city
(PhysOrg.com) -- More hedgehogs may now be living in towns and cities than in the countryside but how they trade off the risks and benefits of an urban environment has been little known -- until now. New ...
May 26, 2010 |
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Idaho scientists find fabled worm
(AP) -- Two living specimens of the fabled giant Palouse earthworm have been captured for the first time in two decades, University of Idaho scientists revealed on Tuesday.
Apr 27, 2010 |
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Ancient snakes living on Madagascar
"Blindsnakes are not very pretty, are rarely noticed, and are often mistaken for earthworms," admits Blair Hedges, professor of biology at Penn State University. "Nonetheless, they tell a very interesting ...
Mar 31, 2010 |
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Researcher finds forest birds 'commuting' to attract mates
(PhysOrg.com) -- An ecologist at the University of Rhode Island studying habitat use by a forest-dwelling game bird found that the birds unexpectedly exhibited what he described as "the bar scene phenomenon" ...
Nov 06, 2009 |
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Scientists Use MicroRNAs to Track Evolutionary History for First Time
(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 ...
Sep 09, 2009 |
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Earthworm
Earthworm is the common name for the largest members of Oligochaeta (which is either a class or subclass depending on the author) in the phylum Annelida. In classical systems they were placed in the order Opisthopora, on the basis of the male pores opening posterior to the female pores, even though the internal male segments are anterior to the female. Theoretical cladistic studies have placed them instead in the suborder Lumbricina of the order Haplotaxida, but this may again soon change. Folk names for the earthworm include "dew-worm", "Rainworm", "night crawler" and "angleworm" (due to its use as fishing bait).
Earthworms are also called megadriles (or big worms), as opposed to the microdriles (or small worms) in the families Tubificidae, Lumbriculidae, and Enchytraeidae, among others. The megadriles are characterized by having a distinct clitellum (which is much more obvious than the single-layered one of the microdriles) and a vascular system with true capillaries.
For more information about Earthworm, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
