The vitamin a content of polar bear liver: Range and variability
β Scribed by R.W. Lewis; J.W. Lentfer
- Book ID
- 115830359
- Publisher
- Elsevier Science
- Year
- 1967
- Weight
- 224 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0010-406X
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π SIMILAR VOLUMES
The difference between serum levels from 36 captive and 56 free-ranging polar bears (Ursus maritimus) for 25-hydroxyvitamin D (25-OH-D) was found not to be significant (mean Β± SD = 348 Β± 215 nmol/L [captive], 360 Β± 135 nmol/L [freeranging], t = 0.30, df = 52.8, P = 0.76), whereas the difference for
Polar bears are creatures of paradox: They are white bears whose skin is black; massive predators who can walk almost silently; Arctic residents whose major problem is not staying warm, but keeping cool. Fully grown they can measure 10 feet and weigh close to 2,000 pounds, but at birth they are just