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Chipmunk Reproduction - Anatomy & Physiology (view source)
Revision as of 11:35, 21 July 2008
, 11:35, 21 July 2008no edit summary
<big><center>[[Reproductive_System#Small_Domestic_Mammals|'''BACK TO SMALL DOMESTIC MAMMALS''']]</center></big>
<big><center>[[Reproductive_System#Small_Domestic_Mammals|'''BACK TO SMALL DOMESTIC MAMMALS''']]</center></big>
* Os penis lies within the tissue of the penis.
* Os penis lies within the tissue of the penis.
== Testes ==
== Testes ==
** Allows testes to shrink and return to the abdomen in the non-breeding season.
** Allows testes to shrink and return to the abdomen in the non-breeding season.
== Puberty and Sexual Maturity ==
== Puberty and Sexual Maturity ==
* Sexually mature at 6-7 weeks.
* Sexually mature at 6-7 weeks.
== Mammary Gland ==
== Mammary Gland ==
* Teats are absent.
* Teats are absent.
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= FEMALE =
== Reproductive Tract ==
* [[Female_Reproductive_Tract_-The_Uterus_-_Anatomy_%26_Physiology#Anatomical_Types_of_Uteri|Bicornate uterus]]
** Short uterine body
** Single [[Female_Reproductive_Tract_-The_Cervix_-_Anatomy_%26_Physiology|cervix]]
== Puberty and Sexual Maturity ==
* Sexually mature at 12 months.
== Oestrous Cyclicity ==
* Seasonally Polyoestrous.
* Spontaneous ovulator.
* Breeding season ia March-September.
* Length of [[Female_Reproductive_Tract_-Oestrous_Cycle_-_Anatomy_%26_Physiology|oestrous cycle]]: 14 days
* '''Oestrus''' lasts three days.
* Advertises willingness to mate with persistent chipping noise on the second day of oestrus.
== Gestation and Offspring ==
* [[Reproductive_System#Gestation|Gestation]] period 28-32 days.
* Litter size 2-6
* Altricial young
** Weaned at 6-7 weeks
== Mammary Gland ==
* 4 pairs of teats.