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Fish

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Tetrapods

A fish is any aquatic vertebrate animal that is typically ectothermic (or cold-blooded), covered with scales, and equipped with two sets of paired fins and several unpaired fins. Fish are abundant in the sea and in fresh water, with species being known from mountain streams (e.g., char and gudgeon) as well as in the deepest depths of the ocean (e.g., gulpers and anglerfish).

Food prepared from fish is also called fish, and it is an important food source for humans. They are harvested either from wild fisheries (see fishing) or farmed in much the same way as cattle or chickens (see aquaculture). They are also exploited by recreational fishers and fishkeepers, and are exhibited in public aquaria. Fish have had a role in many cultures through the ages, ranging from deities and religious symbols to the subjects of books and popular movies.

For more information about Fish, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.


News tagged with fish

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Why fish oils help and how they could help even more

Medicine & Health / Research

created Oct 28, 2009 | popularity 4.6 / 5 (27) | comments 9

New research from Queen Mary, University of London and Harvard Medical School has revealed precisely why taking fish oils can help with conditions like rheumatoid arthritis.


Loss of coastal seagrass habitat accelerating globally

Space & Earth / Environment

created Jun 29, 2009 | popularity 4.5 / 5 (16) | comments 2

An international team of scientists warns that accelerating losses of seagrasses across the globe threaten the immediate health and long-term sustainability of coastal ecosystems. The team has compiled and analyzed the first ...


Scientists Find First Creature With Eyes That Use Both Refractive and Reflective Optics

Scientists Find First Creature With Eyes That Use Both Refractive and Reflective Optics

Biology / Plants & Animals

created Jan 27, 2009 | popularity 4.2 / 5 (17) | comments 2

Florida Atlantic University researcher and member of the Center for Ocean Exploration and Deep-Sea Research at Harbor Branch Oceanographic Institute, Dr. Tamara Frank, was part of an international research ...


Ocean acidification is accelerating and severe damages are imminent

Space & Earth / Environment

created Jan 30, 2009 | popularity 2.8 / 5 (25) | comments 27

Urgent action is needed to limit damages to marine ecosystems, including coral reefs and fisheries, due to increasing ocean acidity, according to 155 of the world’s scientific experts who will release the Monaco Declaration ...


Fossilised pregnant fish was one of the first animals to have sex

Fossilised pregnant fish was one of the first animals to have sex

Biology /

created Feb 25, 2009 | popularity 4.9 / 5 (14) | comments 3

(PhysOrg.com) -- A pregnant fossil fish at the Natural History Museum in London has shed light on the possible origin of sex, according to a study published in Nature today by an international team includ ...


Why the thumb of the right hand is on the left hand side

Biology / Cell & Microbiology

created May 22, 2009 | popularity 4.8 / 5 (13) | comments 0

It is the concentration of a few signaling molecules that determines the fate of individual cells during the early development of organisms. In the renowned journal Current Biology, a team of molecular biologists led by Pia ...


H. psychedelica Crawling

DNA evidence is in, newly discovered species of fish dubbed H. psychedelica (Video)

Biology /

created Feb 24, 2009 | popularity 4.8 / 5 (12) | comments 0

(PhysOrg.com) -- "Psychedelica" seems the perfect name for a species of fish that is a wild swirl of tan and peach zebra stripes and behaves in ways contrary to its brethren. So says University of Washington's ...


Fish

Algae-Based Biofuel From Fish

Chemistry / Biochemistry

created Sep 01, 2009 | popularity 3.9 / 5 (12) | comments 14

Right now, when biofuel is produced using algae, cultures are grown and then processed into fuel. But the process is expensive and difficult. Now a company in Texas, LiveFuels, Inc., hopes that it will be ...


The robot uses a laser range finder and radio communications to recreate the behaviour of fish

Cars may one day mimic fish to avoid collisions

Technology / Hi Tech

created Oct 01, 2009 | popularity 4.9 / 5 (9) | comments 1

Engineers in Japan say they are a step closer to developing technology they hope will cut the risk of car crashes -- by mimicking the behaviour of fish.


Fish guts explain marine carbon cycle mystery

Space & Earth / Earth Sciences

created Jan 15, 2009 | popularity 4.8 / 5 (9) | comments 1

Research published today reveals the major influence of fish on maintaining the delicate pH balance of our oceans, vital for the health of coral reefs and other marine life.


Nile Delta fishery grows dramatically thanks to run-off of sewage, fertilizers

Space & Earth / Environment

created Jan 19, 2009 | popularity 4.8 / 5 (9) | comments 2

While many of the world's fisheries are in serious decline, the coastal Mediterranean fishery off the Nile Delta has expanded dramatically since the 1980s.


Vitamin D3

Vitamin D found in fish boosts brain power

Medicine & Health / Health

created May 21, 2009 | popularity 4.8 / 5 (9) | comments 0

Eating fish -- long considered 'brain food' -- may really be good for the old grey matter, as is a healthy dose of sunshine, new research suggests.


Phosphorous Delivered to Gulf of Mexico

The Mighty Mississippi Basin and Gulf Suffocating: Inertia Not An Option

Space & Earth / Environment

created Jul 27, 2009 | popularity 3.8 / 5 (11) | comments 20

The Water Science and Technology Board, (WTSB), Division on Earth and Life Sciences of the National Research Council has released for publication its study for improving water quality in the Mississippi River ...


Half of the fish consumed globally is now raised on farms, study finds

Half of the fish consumed globally is now raised on farms, study finds

Biology / Ecology

created Sep 07, 2009 | popularity 4.7 / 5 (9) | comments 4

Aquaculture, once a fledgling industry, now accounts for 50 percent of the fish consumed globally, according to a new report by an international team of researchers. And while the industry is more efficient ...


Fossils suggest earlier land-water transition of tetrapod

Other Sciences / Archaeology & Fossils

created Apr 17, 2009 | popularity 4.6 / 5 (9) | comments 0

New evidence gleaned from CT scans of fossils locked inside rocks may flip the order in which two kinds of four-limbed animals with backbones were known to have moved from fish to landlubber.