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
Extinct goat was cold-blooded
Nov 18, 2009 |
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(PhysOrg.com) -- An extinct goat that lived on a barren Mediterranean island survived for millions of years by reducing in size and by becoming cold-blooded, which has never before been discovered in mammals.
Bigger not necessarily better, when it comes to brains
Nov 17, 2009 |
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(PhysOrg.com) -- Tiny insects could be as intelligent as much bigger animals, despite only having a brain the size of a pinhead, say scientists at Queen Mary, University of London.
Warm-blooded dinosaurs worked up a sweat
Nov 11, 2009 |
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(PhysOrg.com) -- Were dinosaurs endothermic (warm-blooded) like present-day mammals and birds or ectothermic (cold-blooded) like present-day lizards? The implications of this simple-sounding question go beyond ...
Can biodiversity persist in the face of climate change?
Nov 06, 2009 |
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(PhysOrg.com) -- Predictions made over the last decade about the impacts of climate change on biodiversity may be exaggerated, according to a paper published in the journal Science.
The therapeutic benefits of the human-animal bond
Other Sciences / Social Sciences
Nov 30, 2009 |
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A pet owner knows the enormous joy and comfort that an animal can provide, especially in troubled times. Most pets are considered important members of the family and irreplaceable companions. A growing body of research now ...
Aquatic creatures mix ocean water
Nov 22, 2009 |
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Understanding mixing in the ocean is of fundamental importance to modeling climate change or predicting the effects of an El Niño on our weather. Modern ocean models primarily incorporate the effects of winds and tides. However, ...
Sweden allows first wolf hunt in 45 years
Dec 02, 2009 |
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Sweden will this winter allow its first wolf hunt in 45 years following a decision by the Scandinavian country's parliament to limit their number, authorities said on Wednesday.
Ted Turner gets OK for Yellowstone bison on ranch
Dec 03, 2009 |
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(AP) -- The head of Montana's wildlife agency has given preliminary approval to a plan calling for 74 bison from Yellowstone National Park to go to billionaire Ted Turner's private ranch.
Penguins and sea lions help produce new atlas
Nov 16, 2009 |
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Recording hundreds of thousands of individual uplinks from satellite transmitters fitted on penguins, albatrosses, sea lions, and other marine animals, the Wildlife Conservation Society (WCS) and BirdLife ...
