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Continental rifting and habitat formation: arena for resource polymorphism in Arctic Charr

Article Abstract:

The habitat, evolution and ecosystem of Icelandic lake Thingvallavatn is described. A special examination is made of the Arctic charr. Thingvallavatn is the only lake in the world with four Arctic charr morphs which utilize different types of food resources. The morphs also possess three different types of genetic differentiation.

Author: Jonsson, Bror, Sandlund, Odd Terje, Jonasson, Petur M.
Publisher: Royal Swedish Academy of Sciences
Publication Name: Ambio
Subject: Environmental issues
ISSN: 0044-7447
Year: 1998
Natural history, Fishes, Natural resources, Evolution (Biology), Iceland, Genetic polymorphisms

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Trailing a virus

Article Abstract:

The microorganism that caused the swelling of joints of 27 feverish people in Malaysia has been identified as the Nipah virus. Mistakenly identified as the Japanese encephalitis virus, the Nipah virus also caused the destruction of pig farming in the country.

Author: Gibbs, W. Wyatt
Publisher: Scientific American, Inc.
Publication Name: Scientific American
Subject: Science and technology
ISSN: 0036-8733
Year: 1999
Research, Diseases, Virus diseases, Swine, Swine diseases, Medical virology

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How breast milk protects newborns

Article Abstract:

Breast milk contains antibodies that protects newborns from various diseases. These antibodies binds to specific proteins, or antigens, that attacks infectious agents that infants encounter in their first weeks of life.

Author: Newman, Jack
Publisher: Scientific American, Inc.
Publication Name: Scientific American
Subject: Science and technology
ISSN: 0036-8733
Year: 1995
Health aspects, Infants (Newborn), Newborn infants, Breast feeding, Lactation, Breast milk

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