By Richard J. Goss
This can be a e-book approximately considered one of nature's so much striking accomplishments. while deer develop antlers they're really regenerating anatomically advanced appendages - anything that no different mammal can do. the speed at which antler elongate makes them the quickest growing to be constructions within the animal nation. Profoundly tormented by male hormones, those secondary intercourse characters develop into enormous tumors if the deer owning them is castrated. those and different designated features have made antlers the focal point of intensive medical study that addresses a few provocative questions: From what tissues do antlers strengthen? by way of what morphogenetic mechanisms are they regenerated each year? What social capabilities caused their preliminary evolution? How are they prompted by means of hormones, and by means of the seasonal daylength fluctuations that keep an eye on their annual substitute cycles? those and plenty of different questions are thought of during this finished account of antlerology. scholars of improvement, evolution, and behaviour will locate a lot to understand during this quantity, as will ecologists, flora and fauna biologists, and zookeepers. it's a wealthy resource of data for endocrinologists and physiologists attracted to the connection of antlers to the reproductive cycle. The orthopedists will locate the learn of antlers a worthwhile version of skeletal development and bone affliction, and the purported medicinal houses of velvet antlers should be a topic of curiosity to the pharmacologist. Deer Antlers: Regeneration, functionality, and Evolution is as scientifically exact because it is readable. It doesn't solution all questions on those certain appendages, however it is sure to arouse interest concerning the many unsolved difficulties of the way antlers develop, die, and are shed during a unmarried yr.
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Extra info for Deer Antlers. Regeneration, Function and Evolution
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So intent are they on pursuing females and fighting rivals that they may lose considerable weight from lack of eating in the early autumn. Females at this time of year come into estrus every few weeks until pregnant. Precocious ones may breed in their second year (approximately 16 months of age), but more often not until a year later. Although males may be fertile in their second year, they seldom mate until their third because of competition with older bulls. Moose reach their prime at the age of 6 to 10 years, and have been known to live up to 20 years.
Zool. Soc. London pp. 1 8 1 - 2 0 7 . Powell, A. N. W . (1964). The musk deer. J. Bengal Nat. Hist. Soc. 33, 1 4 9 - 1 5 2 . Prior, R. (1965). " Andre Deutsch Limited, London. Prior, R. (1968). " Oxford Univ. Press, London/New York. Quay, W . B. (1959). Microscopic structure and variation in the cutaneous glands of the deer, Odocoileus virginianus. J. Mammal. 4 0 , 1 1 4 - 1 2 8 . Ryden, H. (1978). Saga of the toy deer. Audubon 80 (6), 9 2 - 1 0 3 . Schaller, G. B. (1967). "The Deer and the Tiger.
Deer Antlers. Regeneration, Function and Evolution by Richard J. Goss