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Ursidae Family

Known as: Bear, Bears, Ursidae 
The family of carnivorous or omnivorous bears, having massive bodies, coarse heavy fur, relatively short limbs, and almost rudimentary tails.
National Institutes of Health

Papers overview

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Highly Cited
2013
Highly Cited
2013
All cancers are caused by somatic mutations; however, understanding of the biological processes generating these mutations is… Expand
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Highly Cited
2001
Highly Cited
2001
Here we report, for the first time, on the global distribution of perfluorooctanesulfonate (PFOS), a fluorinated organic… Expand
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Review
1998
Review
1998
The work of one of us (W. B.) was supported by a grant of the Human Frontiers Science Program. We wish to thank Drs. C. P. Hill… Expand
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Highly Cited
1995
Highly Cited
1995
Attempts to study the genetic population structure of large mammals are often hampered by the low levels of genetic variation… Expand
Highly Cited
1994
Highly Cited
1994
Conservation biology has two threads: the small-population paradigm which deals with the erect of smallness on the persistence of… Expand
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Review
1993
Review
1993
Joseph T. Jerrett and Peter T. Lansbury, Jr. Department of Chemistry Massachusetts Institute of Technology Cambridge… Expand
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Highly Cited
1991
Highly Cited
1991
The three-dimensional structure of acetylcholinesterase from Torpedo californica electric organ has been determined by x-ray… Expand
Review
1985
Review
1985
This chapter reviews basic issues of theory and method in approaches to research on teaching that are alternatively called… Expand
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Highly Cited
1974
Highly Cited
1974
With a stepwise degradation and terminal labeling procedure the 3'-terminal sequence of E. coli 16S ribosomal RNA is shown to be… Expand
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Review
1949
Review
1949
Introduction The various colors of iodine in different solvents have attracted the attention of investigators for over half a… Expand
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