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Topic: Embryonic diapause

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Kangaroo

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Scientific classification

	Encyclopedia :: encyclopedia : Developmental biology (Site not responding. Last check: 2007-11-03)
		Modern developmental biology studies the genetic control of cell growth, differentiation and "morphogenesis," which is the process that gives rise to tissues, organs and anatomy.
		Embryology is a subfield, the study of organisms between the one-cell stage (generally, the zygote) and the end of the embryonic stage, which is not necessarily the beginning of free living.
		During the second half of the 20th century the types of molecules involved in embryonic development were identified.
	www.hallencyclopedia.com /Developmental_biology (497 words)

	List of Publications by OFAS
		Matias JR, Markofsky J. The survival of embryos of the annual fish, Nothobranchius guentheri, exposed to temperature extremes and the subsequent effects of embryonic diapause.
		Markofsky J, Matias JR, Inglima K, Vogelman JH, Orentreich N. The variable effects of ambient and artificial light:dark cycles on embryonic diapause in a laboratory population of the annual fish Nothobranchius guentheri.
		The effect of exposure to gaseous ammonia on the duration of diapause II in the embryos of the annual fish Nothobrachius guentheri.
	www.orentreich.org /pubs.htm (5199 words)

	Striped Mud Turtles
		Mud turtle eggs can undergo a diapause period, especially those laid in the fall.
		A period of chill temperatures followed by a warming may be required to end the diapause and allow development to begin again (Ewert and Wilson, 1996), which can make artificial incubation more difficult.
		Ewert, MA; Wilson, DS: Seasonal Variation of Embryonic Diapause in the Striped Mud Turtle (Kinosternon baurii) and General Considerations for Conservation Planning.
	www.unc.edu /~dtkirkpa/stuff/bauri.html (2807 words)

	Baja Seafaris - Sail Boat Charters in La Paz, Mexico
		When we were there, we saw the new pups but the big bull males were there and mating would have occurred recently.
		This synchronization of mating and birthing is accomplished by a trick called 'embryonic diapause'.
		As soon as they mate, the egg is fertilized and starts to divide, but the development of the new embryo is arrested at an early stage (goes into diapause) and it does not start growing again until about 8 months before the next mating season (about 4 months from now).
	www.bajaseafaris.com /wildlife.html (1523 words)

	Amino Acid Transport Regulates Blastocyst Implantation -- Martin et al. 69 (4): 1101 -- Biology of Reproduction
		embryonic events and it resembles, in many ways, the process
		Nitric oxide as a regulator of embryonic development.
		Effect of inhibitors of polyamine synthesis on activation of diapausing mouse blastocysts in vitro.
	www.biolreprod.com /cgi/content/full/69/4/1101 (6235 words)

	Kangaroo at exZOOberance!
		After the pouch offspring is more mature and is able to leave the mother’s pouch (up to six or seven months later), the blastocyst resumes development and soon emerges from the womb and moves into the now empty pouch.
		This reproductive feature, called embryonic diapause, enables kangaroos to care for up to three litters simultaneously during desirable conditions: an older, weaned offspring still under the mother's care, another maturing in the pouch, and a third in suspended development in the uterus.
		Should adverse conditions cause the weaned young to die, other offspring are still available for rearing.
	www.exzooberance.com /virtual%20zoo/they%20walk/kangaroo/kangaroo.htm (1721 words)

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