Animal
hideAnimals are a major group of mostly multicellular, eukaryotic organisms of the kingdom Animalia or Metazoa. Their body plan eventually becomes fixed as they develop, although some undergo a process of metamorphosis later on in their life. Most animals are motile, meaning they can move spontaneously and independently. Most animals are also heterotrophs, meaning they must ingest other organisms for sustenance.
Most known animal phyla appeared in the fossil record as marine species during the Cambrian explosion, about 542 million years ago.
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News tagged with animals
Evolution may take giant leaps
Dec 11, 2009 |
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(PhysOrg.com) -- A new study of thousands of species of plants and animals suggests new species may arise from rare events instead of through an accumulation of small changes made in response to changes in ...
Endangered rhinos return to wild
Dec 11, 2009 |
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A Czech zoo is to transfer four endangered Northern White rhinos to a Kenyan reserve in a last-ditch attempt to ensure the survival of the species.
Probing Question: What are wildlife corridors?
Dec 10, 2009 |
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Imagine that an unknown force hacks your city into two chunks. Because of this new barrier, you can’t get from your home to your office or the grocery store. Suddenly, your access to critical resources is ...
Study reveals how Arctic food webs affect mercury in polar bears
Dec 08, 2009 |
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With growing concerns about the effects of global warming on polar bears, it's increasingly important to understand how other environmental threats, such as mercury pollution, are affecting these magnificent Arctic animals.
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NC State vets lead way in disaster response for animals
Dec 08, 2009 |
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Most people can picture the first responders who come to the rescue in the wake of a natural disaster. But who provides emergency help for the dogs, cats and horses that people love? And who takes care of ...
Roe of marine animals is best natural source of omega-3
Dec 11, 2009 |
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The roe of hake, lumpsucker and salmon is the best dietary source of Omega 3, according to a study carried out by researchers at the University of Almería (UAL). The scientists analysed the eggs, or ...
The mammoths' swan song revised
Other Sciences / Archaeology & Fossils
4 hours ago |
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This is shown by samples of ancient DNA, analysed by an international team of research scientists under the leadership of Professor Eske Willerslev from Copenhagen University. Analyses of ancient DNA thereby ...
Ancient pygmy sea cow discovered
Other Sciences / Archaeology & Fossils
1hour ago |
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(PhysOrg.com) -- The discovery of a Middle Eocene (48.6-37.2 million years ago) sea cow fossil by McGill University professor Karen Samonds has culminated in the naming of a new species. This primitive "dugong" ...
How calorie-restricted diets fight obesity and extend life span
Dec 09, 2009 |
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Scientists searching for the secrets of how calorie-restricted diets increase longevity are reporting discovery of proteins in the fat cells of human volunteers that change as pounds drop off. The proteins ...
Swine flu toll includes a few pets
Dec 08, 2009 |
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(AP) -- A handful of pets have been sickened with swine flu in recent weeks, but here are doctors' orders: Wash your hands and don't panic.
77 percent of European pigs are castrated without anesthetic
Dec 09, 2009 |
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The castration of pigs prevents the "boar taint" smell in the meat and allows them to contain more fat. However in practice this can be very different. Now, for the first time, a scientific team has collected ...
With amino acid diet, mice improve after brain injury
Dec 07, 2009 |
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Neurology researchers have shown that feeding amino acids to brain-injured animals restores their cognitive abilities and may set the stage for the first effective treatment for cognitive impairments suffered by people with ...
Flying dinosaur controversy resolved
Other Sciences / Archaeology & Fossils
Dec 10, 2009 |
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(PhysOrg.com) -- New research appears to have ended a scientific debate that has vexed palaeontologists for almost 100 years.
Evidence unearthed of possible mass cannibalism in Neolithic Europe
Other Sciences / Archaeology & Fossils
Dec 07, 2009 |
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(PhysOrg.com) -- Archaeologists studying a 7,000-year-old site in what is now south-west Germany have found evidence suggesting that more than 500 people may have been the victims of cannibalism.
List of search results for animals
